28575180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:621

約数の個数: 120

約数和(自身を含む): 92695680

約数和(自身を除く): 64120500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 569, 620, 810, 837, 930, 1116, 1138, 1395, 1620, 1674, 1707, 1860, 2276, 2511, 2790, 2845, 3348, 3414, 4185, 5022, 5121, 5580, 5690, 6828, 8370, 8535, 10044, 10242, 11380, 12555, 15363, 16740, 17070, 17639, 20484, 25110, 25605, 30726, 34140, 35278, 46089, 50220, 51210, 52917, 61452, 70556, 76815, 88195, 92178, 102420, 105834, 153630, 158751, 176390, 184356, 211668, 230445, 264585, 307260, 317502, 352780, 460890, 476253, 529170, 635004, 793755, 921780, 952506, 1058340, 1428759, 1587510, 1905012, 2381265, 2857518, 3175020, 4762530, 5715036, 7143795, 9525060, 14287590, 28575180]

約数ペア:

[(1, 28575180), (2, 14287590), (3, 9525060), (4, 7143795), (5, 5715036), (6, 4762530), (9, 3175020), (10, 2857518), (12, 2381265), (15, 1905012), (18, 1587510), (20, 1428759), (27, 1058340), (30, 952506), (31, 921780), (36, 793755), (45, 635004), (54, 529170), (60, 476253), (62, 460890), (81, 352780), (90, 317502), (93, 307260), (108, 264585), (124, 230445), (135, 211668), (155, 184356), (162, 176390), (180, 158751), (186, 153630), (270, 105834), (279, 102420), (310, 92178), (324, 88195), (372, 76815), (405, 70556), (465, 61452), (540, 52917), (558, 51210), (569, 50220), (620, 46089), (810, 35278), (837, 34140), (930, 30726), (1116, 25605), (1138, 25110), (1395, 20484), (1620, 17639), (1674, 17070), (1707, 16740), (1860, 15363), (2276, 12555), (2511, 11380), (2790, 10242), (2845, 10044), (3348, 8535), (3414, 8370), (4185, 6828), (5022, 5690), (5121, 5580)]