161723905

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 226497024

約数和(自身を除く): 64773119

約数列:

[1, 5, 7, 35, 103, 113, 397, 515, 565, 721, 791, 1985, 2779, 3605, 3955, 11639, 13895, 40891, 44861, 58195, 81473, 204455, 224305, 286237, 314027, 407365, 1431185, 1570135, 4620683, 23103415, 32344781, 161723905]

約数ペア:

[(1, 161723905), (5, 32344781), (7, 23103415), (35, 4620683), (103, 1570135), (113, 1431185), (397, 407365), (515, 314027), (565, 286237), (721, 224305), (791, 204455), (1985, 81473), (2779, 58195), (3605, 44861), (3955, 40891), (11639, 13895)]