205121405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{23893}}^1$

素因数の和:24016

約数の個数: 16

約数和(自身を含む): 263216304

約数和(自身を除く): 58094899

約数列:

[1, 5, 17, 85, 101, 505, 1717, 8585, 23893, 119465, 406181, 2030905, 2413193, 12065965, 41024281, 205121405]

約数ペア:

[(1, 205121405), (5, 41024281), (17, 12065965), (85, 2413193), (101, 2030905), (505, 406181), (1717, 119465), (8585, 23893)]