18143525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 23831808

約数和(自身を除く): 5688283

約数列:

[1, 5, 25, 31, 41, 155, 205, 571, 775, 1025, 1271, 2855, 6355, 14275, 17701, 23411, 31775, 88505, 117055, 442525, 585275, 725741, 3628705, 18143525]

約数ペア:

[(1, 18143525), (5, 3628705), (25, 725741), (31, 585275), (41, 442525), (155, 117055), (205, 88505), (571, 31775), (775, 23411), (1025, 17701), (1271, 14275), (2855, 6355)]