31471505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 13888495

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1499, 1615, 4199, 7495, 19487, 20995, 25483, 28481, 97435, 127415, 142405, 331279, 370253, 484177, 1656395, 1851265, 2420885, 6294301, 31471505]

約数ペア:

[(1, 31471505), (5, 6294301), (13, 2420885), (17, 1851265), (19, 1656395), (65, 484177), (85, 370253), (95, 331279), (221, 142405), (247, 127415), (323, 97435), (1105, 28481), (1235, 25483), (1499, 20995), (1615, 19487), (4199, 7495)]