139948400

素因数分解:

$2^4\times 5^2\times {\mathrm{349871}}^1$

素因数の和:349889

約数の個数: 30

約数和(自身を含む): 336226992

約数和(自身を除く): 196278592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 349871, 699742, 1399484, 1749355, 2798968, 3498710, 5597936, 6997420, 8746775, 13994840, 17493550, 27989680, 34987100, 69974200, 139948400]

約数ペア:

[(1, 139948400), (2, 69974200), (4, 34987100), (5, 27989680), (8, 17493550), (10, 13994840), (16, 8746775), (20, 6997420), (25, 5597936), (40, 3498710), (50, 2798968), (80, 1749355), (100, 1399484), (200, 699742), (400, 349871)]