28666625

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 41109120

約数和(自身を除く): 12442495

約数列:

[1, 5, 13, 23, 25, 59, 65, 115, 125, 169, 295, 299, 325, 575, 767, 845, 1357, 1475, 1495, 1625, 2875, 3835, 3887, 4225, 6785, 7375, 7475, 9971, 17641, 19175, 19435, 21125, 33925, 37375, 49855, 88205, 95875, 97175, 169625, 229333, 249275, 441025, 485875, 1146665, 1246375, 2205125, 5733325, 28666625]

約数ペア:

[(1, 28666625), (5, 5733325), (13, 2205125), (23, 1246375), (25, 1146665), (59, 485875), (65, 441025), (115, 249275), (125, 229333), (169, 169625), (295, 97175), (299, 95875), (325, 88205), (575, 49855), (767, 37375), (845, 33925), (1357, 21125), (1475, 19435), (1495, 19175), (1625, 17641), (2875, 9971), (3835, 7475), (3887, 7375), (4225, 6785)]