643669130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{291253}}^1$

素因数の和:291290

約数の個数: 32

約数和(自身を含む): 1321128144

約数和(自身を除く): 677459014

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 291253, 582506, 1456265, 2912530, 3786289, 4951301, 7572578, 9902602, 18931445, 24756505, 37862890, 49513010, 64366913, 128733826, 321834565, 643669130]

約数ペア:

[(1, 643669130), (2, 321834565), (5, 128733826), (10, 64366913), (13, 49513010), (17, 37862890), (26, 24756505), (34, 18931445), (65, 9902602), (85, 7572578), (130, 4951301), (170, 3786289), (221, 2912530), (442, 1456265), (1105, 582506), (2210, 291253)]