124939280

素因数分解:

$2^4\times 5^1\times {\mathrm{1561741}}^1$

素因数の和:1561754

約数の個数: 20

約数和(自身を含む): 290484012

約数和(自身を除く): 165544732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1561741, 3123482, 6246964, 7808705, 12493928, 15617410, 24987856, 31234820, 62469640, 124939280]

約数ペア:

[(1, 124939280), (2, 62469640), (4, 31234820), (5, 24987856), (8, 15617410), (10, 12493928), (16, 7808705), (20, 6246964), (40, 3123482), (80, 1561741)]