8272420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31817}}^1$

素因数の和:31839

約数の個数: 24

約数和(自身を含む): 18708984

約数和(自身を除く): 10436564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31817, 63634, 127268, 159085, 318170, 413621, 636340, 827242, 1654484, 2068105, 4136210, 8272420]

約数ペア:

[(1, 8272420), (2, 4136210), (4, 2068105), (5, 1654484), (10, 827242), (13, 636340), (20, 413621), (26, 318170), (52, 159085), (65, 127268), (130, 63634), (260, 31817)]