408496790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{136621}}^1$

素因数の和:136664

約数の個数: 32

約数和(自身を含む): 826289856

約数和(自身を除く): 417793066

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 136621, 273242, 683105, 1366210, 1776073, 3142283, 3552146, 6284566, 8880365, 15711415, 17760730, 31422830, 40849679, 81699358, 204248395, 408496790]

約数ペア:

[(1, 408496790), (2, 204248395), (5, 81699358), (10, 40849679), (13, 31422830), (23, 17760730), (26, 15711415), (46, 8880365), (65, 6284566), (115, 3552146), (130, 3142283), (230, 1776073), (299, 1366210), (598, 683105), (1495, 273242), (2990, 136621)]