1811420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6967}}^1$

素因数の和:6989

約数の個数: 24

約数和(自身を含む): 4097184

約数和(自身を除く): 2285764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6967, 13934, 27868, 34835, 69670, 90571, 139340, 181142, 362284, 452855, 905710, 1811420]

約数ペア:

[(1, 1811420), (2, 905710), (4, 452855), (5, 362284), (10, 181142), (13, 139340), (20, 90571), (26, 69670), (52, 34835), (65, 27868), (130, 13934), (260, 6967)]