78977420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{74507}}^1$

素因数の和:74569

約数の個数: 24

約数和(自身を含む): 168984144

約数和(自身を除く): 90006724

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 74507, 149014, 298028, 372535, 745070, 1490140, 3948871, 7897742, 15795484, 19744355, 39488710, 78977420]

約数ペア:

[(1, 78977420), (2, 39488710), (4, 19744355), (5, 15795484), (10, 7897742), (20, 3948871), (53, 1490140), (106, 745070), (212, 372535), (265, 298028), (530, 149014), (1060, 74507)]