12805220740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49250849}}^1$

素因数の和:49250871

約数の個数: 24

約数和(自身を含む): 28959499800

約数和(自身を除く): 16154279060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49250849, 98501698, 197003396, 246254245, 492508490, 640261037, 985016980, 1280522074, 2561044148, 3201305185, 6402610370, 12805220740]

約数ペア:

[(1, 12805220740), (2, 6402610370), (4, 3201305185), (5, 2561044148), (10, 1280522074), (13, 985016980), (20, 640261037), (26, 492508490), (52, 246254245), (65, 197003396), (130, 98501698), (260, 49250849)]