256132015

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{4159}}^1$

素因数の和:4386

約数の個数: 16

約数和(自身を含む): 312998400

約数和(自身を除く): 56866385

約数列:

[1, 5, 109, 113, 545, 565, 4159, 12317, 20795, 61585, 453331, 469967, 2266655, 2349835, 51226403, 256132015]

約数ペア:

[(1, 256132015), (5, 51226403), (109, 2349835), (113, 2266655), (545, 469967), (565, 453331), (4159, 61585), (12317, 20795)]