219064820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11867}}^1$

素因数の和:11960

約数の個数: 48

約数和(自身を含む): 502443648

約数和(自身を除く): 283378828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 11867, 18460, 23734, 47468, 59335, 118670, 154271, 237340, 308542, 617084, 771355, 842557, 1542710, 1685114, 3085420, 3370228, 4212785, 8425570, 10953241, 16851140, 21906482, 43812964, 54766205, 109532410, 219064820]

約数ペア:

[(1, 219064820), (2, 109532410), (4, 54766205), (5, 43812964), (10, 21906482), (13, 16851140), (20, 10953241), (26, 8425570), (52, 4212785), (65, 3370228), (71, 3085420), (130, 1685114), (142, 1542710), (260, 842557), (284, 771355), (355, 617084), (710, 308542), (923, 237340), (1420, 154271), (1846, 118670), (3692, 59335), (4615, 47468), (9230, 23734), (11867, 18460)]