212173875

素因数分解:

$3^2\times 5^3\times {\mathrm{151}}^1\times {\mathrm{1249}}^1$

素因数の和:1421

約数の個数: 48

約数和(自身を含む): 385320000

約数和(自身を除く): 173146125

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 151, 225, 375, 453, 755, 1125, 1249, 1359, 2265, 3747, 3775, 6245, 6795, 11241, 11325, 18735, 18875, 31225, 33975, 56205, 56625, 93675, 156125, 169875, 188599, 281025, 468375, 565797, 942995, 1405125, 1697391, 2828985, 4714975, 8486955, 14144925, 23574875, 42434775, 70724625, 212173875]

約数ペア:

[(1, 212173875), (3, 70724625), (5, 42434775), (9, 23574875), (15, 14144925), (25, 8486955), (45, 4714975), (75, 2828985), (125, 1697391), (151, 1405125), (225, 942995), (375, 565797), (453, 468375), (755, 281025), (1125, 188599), (1249, 169875), (1359, 156125), (2265, 93675), (3747, 56625), (3775, 56205), (6245, 33975), (6795, 31225), (11241, 18875), (11325, 18735)]