19686240

素因数分解:

$2^5\times 3^4\times 5^1\times 7^2\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 360

約数和(自身を含む): 83426112

約数和(自身を除く): 63739872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 62, 63, 70, 72, 80, 81, 84, 90, 93, 96, 98, 105, 108, 112, 120, 124, 126, 135, 140, 144, 147, 155, 160, 162, 168, 180, 186, 189, 196, 210, 216, 217, 224, 240, 245, 248, 252, 270, 279, 280, 288, 294, 310, 315, 324, 336, 360, 372, 378, 392, 405, 420, 432, 434, 441, 465, 480, 490, 496, 504, 540, 558, 560, 567, 588, 620, 630, 648, 651, 672, 720, 735, 744, 756, 784, 810, 837, 840, 864, 868, 882, 930, 945, 980, 992, 1008, 1080, 1085, 1116, 1120, 1134, 1176, 1240, 1260, 1296, 1302, 1323, 1395, 1440, 1470, 1488, 1512, 1519, 1568, 1620, 1674, 1680, 1736, 1764, 1860, 1890, 1953, 1960, 2016, 2160, 2170, 2205, 2232, 2268, 2352, 2480, 2511, 2520, 2592, 2604, 2646, 2790, 2835, 2940, 2976, 3024, 3038, 3240, 3255, 3348, 3360, 3472, 3528, 3720, 3780, 3906, 3920, 3969, 4185, 4320, 4340, 4410, 4464, 4536, 4557, 4704, 4960, 5022, 5040, 5208, 5292, 5580, 5670, 5859, 5880, 6048, 6076, 6480, 6510, 6615, 6696, 6944, 7056, 7440, 7560, 7595, 7812, 7840, 7938, 8370, 8680, 8820, 8928, 9072, 9114, 9765, 10044, 10080, 10416, 10584, 11160, 11340, 11718, 11760, 12152, 12555, 12960, 13020, 13230, 13392, 13671, 14112, 14880, 15120, 15190, 15624, 15876, 16740, 17360, 17577, 17640, 18144, 18228, 19530, 19845, 20088, 20832, 21168, 22320, 22680, 22785, 23436, 23520, 24304, 25110, 26040, 26460, 26784, 27342, 29295, 30240, 30380, 31248, 31752, 33480, 34720, 35154, 35280, 36456, 39060, 39690, 40176, 41013, 42336, 44640, 45360, 45570, 46872, 48608, 50220, 52080, 52920, 54684, 58590, 60760, 62496, 63504, 66960, 68355, 70308, 70560, 72912, 78120, 79380, 80352, 82026, 87885, 90720, 91140, 93744, 100440, 104160, 105840, 109368, 117180, 121520, 123039, 127008, 133920, 136710, 140616, 145824, 156240, 158760, 164052, 175770, 182280, 187488, 200880, 205065, 211680, 218736, 234360, 243040, 246078, 273420, 281232, 312480, 317520, 328104, 351540, 364560, 401760, 410130, 437472, 468720, 492156, 546840, 562464, 615195, 635040, 656208, 703080, 729120, 820260, 937440, 984312, 1093680, 1230390, 1312416, 1406160, 1640520, 1968624, 2187360, 2460780, 2812320, 3281040, 3937248, 4921560, 6562080, 9843120, 19686240]

約数ペア:

[(1, 19686240), (2, 9843120), (3, 6562080), (4, 4921560), (5, 3937248), (6, 3281040), (7, 2812320), (8, 2460780), (9, 2187360), (10, 1968624), (12, 1640520), (14, 1406160), (15, 1312416), (16, 1230390), (18, 1093680), (20, 984312), (21, 937440), (24, 820260), (27, 729120), (28, 703080), (30, 656208), (31, 635040), (32, 615195), (35, 562464), (36, 546840), (40, 492156), (42, 468720), (45, 437472), (48, 410130), (49, 401760), (54, 364560), (56, 351540), (60, 328104), (62, 317520), (63, 312480), (70, 281232), (72, 273420), (80, 246078), (81, 243040), (84, 234360), (90, 218736), (93, 211680), (96, 205065), (98, 200880), (105, 187488), (108, 182280), (112, 175770), (120, 164052), (124, 158760), (126, 156240), (135, 145824), (140, 140616), (144, 136710), (147, 133920), (155, 127008), (160, 123039), (162, 121520), (168, 117180), (180, 109368), (186, 105840), (189, 104160), (196, 100440), (210, 93744), (216, 91140), (217, 90720), (224, 87885), (240, 82026), (245, 80352), (248, 79380), (252, 78120), (270, 72912), (279, 70560), (280, 70308), (288, 68355), (294, 66960), (310, 63504), (315, 62496), (324, 60760), (336, 58590), (360, 54684), (372, 52920), (378, 52080), (392, 50220), (405, 48608), (420, 46872), (432, 45570), (434, 45360), (441, 44640), (465, 42336), (480, 41013), (490, 40176), (496, 39690), (504, 39060), (540, 36456), (558, 35280), (560, 35154), (567, 34720), (588, 33480), (620, 31752), (630, 31248), (648, 30380), (651, 30240), (672, 29295), (720, 27342), (735, 26784), (744, 26460), (756, 26040), (784, 25110), (810, 24304), (837, 23520), (840, 23436), (864, 22785), (868, 22680), (882, 22320), (930, 21168), (945, 20832), (980, 20088), (992, 19845), (1008, 19530), (1080, 18228), (1085, 18144), (1116, 17640), (1120, 17577), (1134, 17360), (1176, 16740), (1240, 15876), (1260, 15624), (1296, 15190), (1302, 15120), (1323, 14880), (1395, 14112), (1440, 13671), (1470, 13392), (1488, 13230), (1512, 13020), (1519, 12960), (1568, 12555), (1620, 12152), (1674, 11760), (1680, 11718), (1736, 11340), (1764, 11160), (1860, 10584), (1890, 10416), (1953, 10080), (1960, 10044), (2016, 9765), (2160, 9114), (2170, 9072), (2205, 8928), (2232, 8820), (2268, 8680), (2352, 8370), (2480, 7938), (2511, 7840), (2520, 7812), (2592, 7595), (2604, 7560), (2646, 7440), (2790, 7056), (2835, 6944), (2940, 6696), (2976, 6615), (3024, 6510), (3038, 6480), (3240, 6076), (3255, 6048), (3348, 5880), (3360, 5859), (3472, 5670), (3528, 5580), (3720, 5292), (3780, 5208), (3906, 5040), (3920, 5022), (3969, 4960), (4185, 4704), (4320, 4557), (4340, 4536), (4410, 4464)]