20323420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78167}}^1$

素因数の和:78189

約数の個数: 24

約数和(自身を含む): 45962784

約数和(自身を除く): 25639364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78167, 156334, 312668, 390835, 781670, 1016171, 1563340, 2032342, 4064684, 5080855, 10161710, 20323420]

約数ペア:

[(1, 20323420), (2, 10161710), (4, 5080855), (5, 4064684), (10, 2032342), (13, 1563340), (20, 1016171), (26, 781670), (52, 390835), (65, 312668), (130, 156334), (260, 78167)]