447460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1743

約数の個数: 24

約数和(自身を含む): 1012536

約数和(自身を除く): 565076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1721, 3442, 6884, 8605, 17210, 22373, 34420, 44746, 89492, 111865, 223730, 447460]

約数ペア:

[(1, 447460), (2, 223730), (4, 111865), (5, 89492), (10, 44746), (13, 34420), (20, 22373), (26, 17210), (52, 8605), (65, 6884), (130, 3442), (260, 1721)]