678286570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23609}}^1$

素因数の和:23659

約数の個数: 48

約数和(自身を含む): 1399884120

約数和(自身を除く): 721597550

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 845, 1105, 1690, 2210, 2873, 5746, 14365, 23609, 28730, 47218, 118045, 236090, 306917, 401353, 613834, 802706, 1534585, 2006765, 3069170, 3989921, 4013530, 5217589, 7979842, 10435178, 19949605, 26087945, 39899210, 52175890, 67828657, 135657314, 339143285, 678286570]

約数ペア:

[(1, 678286570), (2, 339143285), (5, 135657314), (10, 67828657), (13, 52175890), (17, 39899210), (26, 26087945), (34, 19949605), (65, 10435178), (85, 7979842), (130, 5217589), (169, 4013530), (170, 3989921), (221, 3069170), (338, 2006765), (442, 1534585), (845, 802706), (1105, 613834), (1690, 401353), (2210, 306917), (2873, 236090), (5746, 118045), (14365, 47218), (23609, 28730)]