85640425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2609}}^1$

素因数の和:2733

約数の個数: 24

約数和(自身を含む): 115539480

約数和(自身を除く): 29899055

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 1313, 2525, 2609, 6565, 13045, 32825, 33917, 65225, 169585, 263509, 847925, 1317545, 3425617, 6587725, 17128085, 85640425]

約数ペア:

[(1, 85640425), (5, 17128085), (13, 6587725), (25, 3425617), (65, 1317545), (101, 847925), (325, 263509), (505, 169585), (1313, 65225), (2525, 33917), (2609, 32825), (6565, 13045)]