90725375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1860

約数の個数: 32

約数和(自身を含む): 125938176

約数和(自身を除く): 35212801

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 775, 1625, 1801, 2015, 3875, 9005, 10075, 23413, 45025, 50375, 55831, 117065, 225125, 279155, 585325, 725803, 1395775, 2926625, 3629015, 6978875, 18145075, 90725375]

約数ペア:

[(1, 90725375), (5, 18145075), (13, 6978875), (25, 3629015), (31, 2926625), (65, 1395775), (125, 725803), (155, 585325), (325, 279155), (403, 225125), (775, 117065), (1625, 55831), (1801, 50375), (2015, 45025), (3875, 23413), (9005, 10075)]