20223025

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 25947000

約数和(自身を除く): 5723975

約数列:

[1, 5, 25, 61, 89, 149, 305, 445, 745, 1525, 2225, 3725, 5429, 9089, 13261, 27145, 45445, 66305, 135725, 227225, 331525, 808921, 4044605, 20223025]

約数ペア:

[(1, 20223025), (5, 4044605), (25, 808921), (61, 331525), (89, 227225), (149, 135725), (305, 66305), (445, 45445), (745, 27145), (1525, 13261), (2225, 9089), (3725, 5429)]