78875000

素因数分解:

$2^3\times 5^6\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 56

約数和(自身を含む): 185153880

約数和(自身を除く): 106278880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 631, 1000, 1250, 1262, 2500, 2524, 3125, 3155, 5000, 5048, 6250, 6310, 12500, 12620, 15625, 15775, 25000, 25240, 31250, 31550, 62500, 63100, 78875, 125000, 126200, 157750, 315500, 394375, 631000, 788750, 1577500, 1971875, 3155000, 3943750, 7887500, 9859375, 15775000, 19718750, 39437500, 78875000]

約数ペア:

[(1, 78875000), (2, 39437500), (4, 19718750), (5, 15775000), (8, 9859375), (10, 7887500), (20, 3943750), (25, 3155000), (40, 1971875), (50, 1577500), (100, 788750), (125, 631000), (200, 394375), (250, 315500), (500, 157750), (625, 126200), (631, 125000), (1000, 78875), (1250, 63100), (1262, 62500), (2500, 31550), (2524, 31250), (3125, 25240), (3155, 25000), (5000, 15775), (5048, 15625), (6250, 12620), (6310, 12500)]