51451600

素因数分解:

$2^4\times 5^2\times {\mathrm{128629}}^1$

素因数の和:128647

約数の個数: 30

約数和(自身を含む): 123613430

約数和(自身を除く): 72161830

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128629, 257258, 514516, 643145, 1029032, 1286290, 2058064, 2572580, 3215725, 5145160, 6431450, 10290320, 12862900, 25725800, 51451600]

約数ペア:

[(1, 51451600), (2, 25725800), (4, 12862900), (5, 10290320), (8, 6431450), (10, 5145160), (16, 3215725), (20, 2572580), (25, 2058064), (40, 1286290), (50, 1029032), (80, 643145), (100, 514516), (200, 257258), (400, 128629)]