157996840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{49999}}^1$

素因数の和:50089

約数の個数: 32

約数和(自身を含む): 360000000

約数和(自身を除く): 202003160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 49999, 99998, 199996, 249995, 399992, 499990, 999980, 1999960, 3949921, 7899842, 15799684, 19749605, 31599368, 39499210, 78998420, 157996840]

約数ペア:

[(1, 157996840), (2, 78998420), (4, 39499210), (5, 31599368), (8, 19749605), (10, 15799684), (20, 7899842), (40, 3949921), (79, 1999960), (158, 999980), (316, 499990), (395, 399992), (632, 249995), (790, 199996), (1580, 99998), (3160, 49999)]