18145075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1855

約数の個数: 24

約数和(自身を含む): 25026176

約数和(自身を除く): 6881101

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 1801, 2015, 9005, 10075, 23413, 45025, 55831, 117065, 279155, 585325, 725803, 1395775, 3629015, 18145075]

約数ペア:

[(1, 18145075), (5, 3629015), (13, 1395775), (25, 725803), (31, 585325), (65, 279155), (155, 117065), (325, 55831), (403, 45025), (775, 23413), (1801, 10075), (2015, 9005)]