79717600

素因数分解:

$2^5\times 5^2\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:668

約数の個数: 72

約数和(自身を含む): 195878088

約数和(自身を除く): 116160488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 251, 397, 400, 502, 794, 800, 1004, 1255, 1588, 1985, 2008, 2510, 3176, 3970, 4016, 5020, 6275, 6352, 7940, 8032, 9925, 10040, 12550, 12704, 15880, 19850, 20080, 25100, 31760, 39700, 40160, 50200, 63520, 79400, 99647, 100400, 158800, 199294, 200800, 317600, 398588, 498235, 797176, 996470, 1594352, 1992940, 2491175, 3188704, 3985880, 4982350, 7971760, 9964700, 15943520, 19929400, 39858800, 79717600]

約数ペア:

[(1, 79717600), (2, 39858800), (4, 19929400), (5, 15943520), (8, 9964700), (10, 7971760), (16, 4982350), (20, 3985880), (25, 3188704), (32, 2491175), (40, 1992940), (50, 1594352), (80, 996470), (100, 797176), (160, 498235), (200, 398588), (251, 317600), (397, 200800), (400, 199294), (502, 158800), (794, 100400), (800, 99647), (1004, 79400), (1255, 63520), (1588, 50200), (1985, 40160), (2008, 39700), (2510, 31760), (3176, 25100), (3970, 20080), (4016, 19850), (5020, 15880), (6275, 12704), (6352, 12550), (7940, 10040), (8032, 9925)]