77970800

素因数分解:

$2^4\times 5^2\times {\mathrm{397}}^1\times {\mathrm{491}}^1$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 188179176

約数和(自身を除く): 110208376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 397, 400, 491, 794, 982, 1588, 1964, 1985, 2455, 3176, 3928, 3970, 4910, 6352, 7856, 7940, 9820, 9925, 12275, 15880, 19640, 19850, 24550, 31760, 39280, 39700, 49100, 79400, 98200, 158800, 194927, 196400, 389854, 779708, 974635, 1559416, 1949270, 3118832, 3898540, 4873175, 7797080, 9746350, 15594160, 19492700, 38985400, 77970800]

約数ペア:

[(1, 77970800), (2, 38985400), (4, 19492700), (5, 15594160), (8, 9746350), (10, 7797080), (16, 4873175), (20, 3898540), (25, 3118832), (40, 1949270), (50, 1559416), (80, 974635), (100, 779708), (200, 389854), (397, 196400), (400, 194927), (491, 158800), (794, 98200), (982, 79400), (1588, 49100), (1964, 39700), (1985, 39280), (2455, 31760), (3176, 24550), (3928, 19850), (3970, 19640), (4910, 15880), (6352, 12275), (7856, 9925), (7940, 9820)]