19451880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 256

約数和(自身を含む): 77414400

約数和(自身を除く): 57962520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 83, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 166, 168, 180, 186, 189, 210, 216, 217, 248, 249, 252, 270, 279, 280, 310, 315, 332, 360, 372, 378, 415, 420, 434, 465, 498, 504, 540, 558, 581, 620, 630, 651, 664, 744, 747, 756, 830, 837, 840, 868, 930, 945, 996, 1080, 1085, 1116, 1162, 1240, 1245, 1260, 1302, 1395, 1494, 1512, 1660, 1674, 1736, 1743, 1860, 1890, 1953, 1992, 2170, 2232, 2241, 2324, 2490, 2520, 2573, 2604, 2790, 2905, 2988, 3255, 3320, 3348, 3486, 3720, 3735, 3780, 3906, 4185, 4340, 4482, 4648, 4980, 5146, 5208, 5229, 5580, 5810, 5859, 5976, 6510, 6696, 6972, 7470, 7560, 7719, 7812, 8370, 8680, 8715, 8964, 9765, 9960, 10292, 10458, 11160, 11205, 11620, 11718, 12865, 13020, 13944, 14940, 15438, 15624, 15687, 16740, 17430, 17928, 18011, 19530, 20584, 20916, 22410, 23157, 23240, 23436, 25730, 26040, 26145, 29295, 29880, 30876, 31374, 33480, 34860, 36022, 38595, 39060, 41832, 44820, 46314, 46872, 51460, 52290, 54033, 58590, 61752, 62748, 69471, 69720, 72044, 77190, 78120, 78435, 89640, 90055, 92628, 102920, 104580, 108066, 115785, 117180, 125496, 138942, 144088, 154380, 156870, 162099, 180110, 185256, 209160, 216132, 231570, 234360, 270165, 277884, 308760, 313740, 324198, 347355, 360220, 432264, 463140, 486297, 540330, 555768, 627480, 648396, 694710, 720440, 810495, 926280, 972594, 1080660, 1296792, 1389420, 1620990, 1945188, 2161320, 2431485, 2778840, 3241980, 3890376, 4862970, 6483960, 9725940, 19451880]

約数ペア:

[(1, 19451880), (2, 9725940), (3, 6483960), (4, 4862970), (5, 3890376), (6, 3241980), (7, 2778840), (8, 2431485), (9, 2161320), (10, 1945188), (12, 1620990), (14, 1389420), (15, 1296792), (18, 1080660), (20, 972594), (21, 926280), (24, 810495), (27, 720440), (28, 694710), (30, 648396), (31, 627480), (35, 555768), (36, 540330), (40, 486297), (42, 463140), (45, 432264), (54, 360220), (56, 347355), (60, 324198), (62, 313740), (63, 308760), (70, 277884), (72, 270165), (83, 234360), (84, 231570), (90, 216132), (93, 209160), (105, 185256), (108, 180110), (120, 162099), (124, 156870), (126, 154380), (135, 144088), (140, 138942), (155, 125496), (166, 117180), (168, 115785), (180, 108066), (186, 104580), (189, 102920), (210, 92628), (216, 90055), (217, 89640), (248, 78435), (249, 78120), (252, 77190), (270, 72044), (279, 69720), (280, 69471), (310, 62748), (315, 61752), (332, 58590), (360, 54033), (372, 52290), (378, 51460), (415, 46872), (420, 46314), (434, 44820), (465, 41832), (498, 39060), (504, 38595), (540, 36022), (558, 34860), (581, 33480), (620, 31374), (630, 30876), (651, 29880), (664, 29295), (744, 26145), (747, 26040), (756, 25730), (830, 23436), (837, 23240), (840, 23157), (868, 22410), (930, 20916), (945, 20584), (996, 19530), (1080, 18011), (1085, 17928), (1116, 17430), (1162, 16740), (1240, 15687), (1245, 15624), (1260, 15438), (1302, 14940), (1395, 13944), (1494, 13020), (1512, 12865), (1660, 11718), (1674, 11620), (1736, 11205), (1743, 11160), (1860, 10458), (1890, 10292), (1953, 9960), (1992, 9765), (2170, 8964), (2232, 8715), (2241, 8680), (2324, 8370), (2490, 7812), (2520, 7719), (2573, 7560), (2604, 7470), (2790, 6972), (2905, 6696), (2988, 6510), (3255, 5976), (3320, 5859), (3348, 5810), (3486, 5580), (3720, 5229), (3735, 5208), (3780, 5146), (3906, 4980), (4185, 4648), (4340, 4482)]