398357570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{43159}}^1$

素因数の和:43250

約数の個数: 32

約数和(自身を含む): 783095040

約数和(自身を除く): 384737470

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 4615, 9230, 43159, 86318, 215795, 431590, 561067, 1122134, 2805335, 3064289, 5610670, 6128578, 15321445, 30642890, 39835757, 79671514, 199178785, 398357570]

約数ペア:

[(1, 398357570), (2, 199178785), (5, 79671514), (10, 39835757), (13, 30642890), (26, 15321445), (65, 6128578), (71, 5610670), (130, 3064289), (142, 2805335), (355, 1122134), (710, 561067), (923, 431590), (1846, 215795), (4615, 86318), (9230, 43159)]