3128125

素因数分解:

$5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 48

約数和(自身を含む): 5249664

約数和(自身を除く): 2121539

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 125, 143, 175, 275, 325, 385, 455, 625, 715, 875, 1001, 1375, 1625, 1925, 2275, 3125, 3575, 4375, 5005, 6875, 8125, 9625, 11375, 17875, 21875, 25025, 34375, 40625, 48125, 56875, 89375, 125125, 240625, 284375, 446875, 625625, 3128125]

約数ペア:

[(1, 3128125), (5, 625625), (7, 446875), (11, 284375), (13, 240625), (25, 125125), (35, 89375), (55, 56875), (65, 48125), (77, 40625), (91, 34375), (125, 25025), (143, 21875), (175, 17875), (275, 11375), (325, 9625), (385, 8125), (455, 6875), (625, 5005), (715, 4375), (875, 3575), (1001, 3125), (1375, 2275), (1625, 1925)]