31317575

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 39967680

約数和(自身を除く): 8650105

約数列:

[1, 5, 25, 79, 101, 157, 395, 505, 785, 1975, 2525, 3925, 7979, 12403, 15857, 39895, 62015, 79285, 199475, 310075, 396425, 1252703, 6263515, 31317575]

約数ペア:

[(1, 31317575), (5, 6263515), (25, 1252703), (79, 396425), (101, 310075), (157, 199475), (395, 79285), (505, 62015), (785, 39895), (1975, 15857), (2525, 12403), (3925, 7979)]