19901025

素因数分解:

$3^3\times 5^2\times {\mathrm{29483}}^1$

素因数の和:29502

約数の個数: 24

約数和(自身を含む): 36560160

約数和(自身を除く): 16659135

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 29483, 88449, 147415, 265347, 442245, 737075, 796041, 1326735, 2211225, 3980205, 6633675, 19901025]

約数ペア:

[(1, 19901025), (3, 6633675), (5, 3980205), (9, 2211225), (15, 1326735), (25, 796041), (27, 737075), (45, 442245), (75, 265347), (135, 147415), (225, 88449), (675, 29483)]