28004730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71807}}^1$

素因数の和:71830

約数の個数: 32

約数和(自身を含む): 72382464

約数和(自身を除く): 44377734

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 71807, 143614, 215421, 359035, 430842, 718070, 933491, 1077105, 1866982, 2154210, 2800473, 4667455, 5600946, 9334910, 14002365, 28004730]

約数ペア:

[(1, 28004730), (2, 14002365), (3, 9334910), (5, 5600946), (6, 4667455), (10, 2800473), (13, 2154210), (15, 1866982), (26, 1077105), (30, 933491), (39, 718070), (65, 430842), (78, 359035), (130, 215421), (195, 143614), (390, 71807)]