823420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3167}}^1$

素因数の和:3189

約数の個数: 24

約数和(自身を含む): 1862784

約数和(自身を除く): 1039364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3167, 6334, 12668, 15835, 31670, 41171, 63340, 82342, 164684, 205855, 411710, 823420]

約数ペア:

[(1, 823420), (2, 411710), (4, 205855), (5, 164684), (10, 82342), (13, 63340), (20, 41171), (26, 31670), (52, 15835), (65, 12668), (130, 6334), (260, 3167)]