8875000

素因数分解:

$2^3\times 5^6\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 56

約数和(自身を含む): 21093480

約数和(自身を除く): 12218480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 500, 568, 625, 710, 1000, 1250, 1420, 1775, 2500, 2840, 3125, 3550, 5000, 6250, 7100, 8875, 12500, 14200, 15625, 17750, 25000, 31250, 35500, 44375, 62500, 71000, 88750, 125000, 177500, 221875, 355000, 443750, 887500, 1109375, 1775000, 2218750, 4437500, 8875000]

約数ペア:

[(1, 8875000), (2, 4437500), (4, 2218750), (5, 1775000), (8, 1109375), (10, 887500), (20, 443750), (25, 355000), (40, 221875), (50, 177500), (71, 125000), (100, 88750), (125, 71000), (142, 62500), (200, 44375), (250, 35500), (284, 31250), (355, 25000), (500, 17750), (568, 15625), (625, 14200), (710, 12500), (1000, 8875), (1250, 7100), (1420, 6250), (1775, 5000), (2500, 3550), (2840, 3125)]