18338840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35267}}^1$

素因数の和:35291

約数の個数: 32

約数和(自身を含む): 44437680

約数和(自身を除く): 26098840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35267, 70534, 141068, 176335, 282136, 352670, 458471, 705340, 916942, 1410680, 1833884, 2292355, 3667768, 4584710, 9169420, 18338840]

約数ペア:

[(1, 18338840), (2, 9169420), (4, 4584710), (5, 3667768), (8, 2292355), (10, 1833884), (13, 1410680), (20, 916942), (26, 705340), (40, 458471), (52, 352670), (65, 282136), (104, 176335), (130, 141068), (260, 70534), (520, 35267)]