128515150

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{82913}}^1$

素因数の和:82956

約数の個数: 24

約数和(自身を含む): 246752064

約数和(自身を除く): 118236914

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 82913, 165826, 414565, 829130, 2072825, 2570303, 4145650, 5140606, 12851515, 25703030, 64257575, 128515150]

約数ペア:

[(1, 128515150), (2, 64257575), (5, 25703030), (10, 12851515), (25, 5140606), (31, 4145650), (50, 2570303), (62, 2072825), (155, 829130), (310, 414565), (775, 165826), (1550, 82913)]