7891875

素因数分解:

$3^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 60

約数和(自身を含む): 15107664

約数和(自身を除く): 7215789

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 61, 69, 75, 115, 125, 183, 207, 225, 305, 345, 375, 549, 575, 625, 915, 1035, 1125, 1403, 1525, 1725, 1875, 2745, 2875, 4209, 4575, 5175, 5625, 7015, 7625, 8625, 12627, 13725, 14375, 21045, 22875, 25875, 35075, 38125, 43125, 63135, 68625, 105225, 114375, 129375, 175375, 315675, 343125, 526125, 876875, 1578375, 2630625, 7891875]

約数ペア:

[(1, 7891875), (3, 2630625), (5, 1578375), (9, 876875), (15, 526125), (23, 343125), (25, 315675), (45, 175375), (61, 129375), (69, 114375), (75, 105225), (115, 68625), (125, 63135), (183, 43125), (207, 38125), (225, 35075), (305, 25875), (345, 22875), (375, 21045), (549, 14375), (575, 13725), (625, 12627), (915, 8625), (1035, 7625), (1125, 7015), (1403, 5625), (1525, 5175), (1725, 4575), (1875, 4209), (2745, 2875)]