90911015

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{271}}^1\times {\mathrm{397}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 118865088

約数和(自身を除く): 27954073

約数列:

[1, 5, 13, 65, 169, 271, 397, 845, 1355, 1985, 3523, 5161, 17615, 25805, 45799, 67093, 107587, 228995, 335465, 537935, 1398631, 6993155, 18182203, 90911015]

約数ペア:

[(1, 90911015), (5, 18182203), (13, 6993155), (65, 1398631), (169, 537935), (271, 335465), (397, 228995), (845, 107587), (1355, 67093), (1985, 45799), (3523, 25805), (5161, 17615)]