20121571340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77390659}}^1$

素因数の和:77390681

約数の個数: 24

約数和(自身を含む): 45505708080

約数和(自身を除く): 25384136740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77390659, 154781318, 309562636, 386953295, 773906590, 1006078567, 1547813180, 2012157134, 4024314268, 5030392835, 10060785670, 20121571340]

約数ペア:

[(1, 20121571340), (2, 10060785670), (4, 5030392835), (5, 4024314268), (10, 2012157134), (13, 1547813180), (20, 1006078567), (26, 773906590), (52, 386953295), (65, 309562636), (130, 154781318), (260, 77390659)]