77878840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149767}}^1$

素因数の和:149791

約数の個数: 32

約数和(自身を含む): 188707680

約数和(自身を除く): 110828840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149767, 299534, 599068, 748835, 1198136, 1497670, 1946971, 2995340, 3893942, 5990680, 7787884, 9734855, 15575768, 19469710, 38939420, 77878840]

約数ペア:

[(1, 77878840), (2, 38939420), (4, 19469710), (5, 15575768), (8, 9734855), (10, 7787884), (13, 5990680), (20, 3893942), (26, 2995340), (40, 1946971), (52, 1497670), (65, 1198136), (104, 748835), (130, 599068), (260, 299534), (520, 149767)]