20100275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2689}}^1$

素因数の和:2735

約数の個数: 24

約数和(自身を含む): 28019040

約数和(自身を除く): 7918765

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2689, 7475, 13445, 34957, 61847, 67225, 174785, 309235, 804011, 873925, 1546175, 4020055, 20100275]

約数ペア:

[(1, 20100275), (5, 4020055), (13, 1546175), (23, 873925), (25, 804011), (65, 309235), (115, 174785), (299, 67225), (325, 61847), (575, 34957), (1495, 13445), (2689, 7475)]