30891965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15331}}^1$

素因数の和:15380

約数の個数: 16

約数和(自身を含む): 41212416

約数和(自身を除く): 10320451

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 15331, 76655, 199303, 475261, 996515, 2376305, 6178393, 30891965]

約数ペア:

[(1, 30891965), (5, 6178393), (13, 2376305), (31, 996515), (65, 475261), (155, 199303), (403, 76655), (2015, 15331)]