317536480

素因数分解:

$2^5\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4999}}^1$

素因数の和:5411

約数の個数: 48

約数和(自身を含む): 752220000

約数和(自身を除く): 434683520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1588, 1985, 3176, 3970, 4999, 6352, 7940, 9998, 12704, 15880, 19996, 24995, 31760, 39992, 49990, 63520, 79984, 99980, 159968, 199960, 399920, 799840, 1984603, 3969206, 7938412, 9923015, 15876824, 19846030, 31753648, 39692060, 63507296, 79384120, 158768240, 317536480]

約数ペア:

[(1, 317536480), (2, 158768240), (4, 79384120), (5, 63507296), (8, 39692060), (10, 31753648), (16, 19846030), (20, 15876824), (32, 9923015), (40, 7938412), (80, 3969206), (160, 1984603), (397, 799840), (794, 399920), (1588, 199960), (1985, 159968), (3176, 99980), (3970, 79984), (4999, 63520), (6352, 49990), (7940, 39992), (9998, 31760), (12704, 24995), (15880, 19996)]