28426710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72889}}^1$

素因数の和:72912

約数の個数: 32

約数和(自身を含む): 73473120

約数和(自身を除く): 45046410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72889, 145778, 218667, 364445, 437334, 728890, 947557, 1093335, 1895114, 2186670, 2842671, 4737785, 5685342, 9475570, 14213355, 28426710]

約数ペア:

[(1, 28426710), (2, 14213355), (3, 9475570), (5, 5685342), (6, 4737785), (10, 2842671), (13, 2186670), (15, 1895114), (26, 1093335), (30, 947557), (39, 728890), (65, 437334), (78, 364445), (130, 218667), (195, 145778), (390, 72889)]