28124775

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{2551}}^1$

素因数の和:2581

約数の個数: 54

約数和(自身を含む): 58621992

約数和(自身を除く): 30497217

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 441, 525, 735, 1225, 1575, 2205, 2551, 3675, 7653, 11025, 12755, 17857, 22959, 38265, 53571, 63775, 89285, 114795, 124999, 160713, 191325, 267855, 374997, 446425, 573975, 624995, 803565, 1124991, 1339275, 1874985, 3124975, 4017825, 5624955, 9374925, 28124775]

約数ペア:

[(1, 28124775), (3, 9374925), (5, 5624955), (7, 4017825), (9, 3124975), (15, 1874985), (21, 1339275), (25, 1124991), (35, 803565), (45, 624995), (49, 573975), (63, 446425), (75, 374997), (105, 267855), (147, 191325), (175, 160713), (225, 124999), (245, 114795), (315, 89285), (441, 63775), (525, 53571), (735, 38265), (1225, 22959), (1575, 17857), (2205, 12755), (2551, 11025), (3675, 7653)]