28158325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3767}}^1$

素因数の和:3813

約数の個数: 24

約数和(自身を含む): 39247488

約数和(自身を除く): 11089163

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 3767, 7475, 18835, 48971, 86641, 94175, 244855, 433205, 1126333, 1224275, 2166025, 5631665, 28158325]

約数ペア:

[(1, 28158325), (5, 5631665), (13, 2166025), (23, 1224275), (25, 1126333), (65, 433205), (115, 244855), (299, 94175), (325, 86641), (575, 48971), (1495, 18835), (3767, 7475)]