2460780

素因数分解:

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

素因数の和:66

約数の個数: 180

約数和(自身を含む): 9269568

約数和(自身を除く): 6808788

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 49, 54, 60, 62, 63, 70, 81, 84, 90, 93, 98, 105, 108, 124, 126, 135, 140, 147, 155, 162, 180, 186, 189, 196, 210, 217, 245, 252, 270, 279, 294, 310, 315, 324, 372, 378, 405, 420, 434, 441, 465, 490, 540, 558, 567, 588, 620, 630, 651, 735, 756, 810, 837, 868, 882, 930, 945, 980, 1085, 1116, 1134, 1260, 1302, 1323, 1395, 1470, 1519, 1620, 1674, 1764, 1860, 1890, 1953, 2170, 2205, 2268, 2511, 2604, 2646, 2790, 2835, 2940, 3038, 3255, 3348, 3780, 3906, 3969, 4185, 4340, 4410, 4557, 5022, 5292, 5580, 5670, 5859, 6076, 6510, 6615, 7595, 7812, 7938, 8370, 8820, 9114, 9765, 10044, 11340, 11718, 12555, 13020, 13230, 13671, 15190, 15876, 16740, 17577, 18228, 19530, 19845, 22785, 23436, 25110, 26460, 27342, 29295, 30380, 35154, 39060, 39690, 41013, 45570, 50220, 54684, 58590, 68355, 70308, 79380, 82026, 87885, 91140, 117180, 123039, 136710, 164052, 175770, 205065, 246078, 273420, 351540, 410130, 492156, 615195, 820260, 1230390, 2460780]

約数ペア:

[(1, 2460780), (2, 1230390), (3, 820260), (4, 615195), (5, 492156), (6, 410130), (7, 351540), (9, 273420), (10, 246078), (12, 205065), (14, 175770), (15, 164052), (18, 136710), (20, 123039), (21, 117180), (27, 91140), (28, 87885), (30, 82026), (31, 79380), (35, 70308), (36, 68355), (42, 58590), (45, 54684), (49, 50220), (54, 45570), (60, 41013), (62, 39690), (63, 39060), (70, 35154), (81, 30380), (84, 29295), (90, 27342), (93, 26460), (98, 25110), (105, 23436), (108, 22785), (124, 19845), (126, 19530), (135, 18228), (140, 17577), (147, 16740), (155, 15876), (162, 15190), (180, 13671), (186, 13230), (189, 13020), (196, 12555), (210, 11718), (217, 11340), (245, 10044), (252, 9765), (270, 9114), (279, 8820), (294, 8370), (310, 7938), (315, 7812), (324, 7595), (372, 6615), (378, 6510), (405, 6076), (420, 5859), (434, 5670), (441, 5580), (465, 5292), (490, 5022), (540, 4557), (558, 4410), (567, 4340), (588, 4185), (620, 3969), (630, 3906), (651, 3780), (735, 3348), (756, 3255), (810, 3038), (837, 2940), (868, 2835), (882, 2790), (930, 2646), (945, 2604), (980, 2511), (1085, 2268), (1116, 2205), (1134, 2170), (1260, 1953), (1302, 1890), (1323, 1860), (1395, 1764), (1470, 1674), (1519, 1620)]