17750000

素因数分解:

$2^4\times 5^6\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 70

約数和(自身を含む): 43593192

約数和(自身を除く): 25843192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 125, 142, 200, 250, 284, 355, 400, 500, 568, 625, 710, 1000, 1136, 1250, 1420, 1775, 2000, 2500, 2840, 3125, 3550, 5000, 5680, 6250, 7100, 8875, 10000, 12500, 14200, 15625, 17750, 25000, 28400, 31250, 35500, 44375, 50000, 62500, 71000, 88750, 125000, 142000, 177500, 221875, 250000, 355000, 443750, 710000, 887500, 1109375, 1775000, 2218750, 3550000, 4437500, 8875000, 17750000]

約数ペア:

[(1, 17750000), (2, 8875000), (4, 4437500), (5, 3550000), (8, 2218750), (10, 1775000), (16, 1109375), (20, 887500), (25, 710000), (40, 443750), (50, 355000), (71, 250000), (80, 221875), (100, 177500), (125, 142000), (142, 125000), (200, 88750), (250, 71000), (284, 62500), (355, 50000), (400, 44375), (500, 35500), (568, 31250), (625, 28400), (710, 25000), (1000, 17750), (1136, 15625), (1250, 14200), (1420, 12500), (1775, 10000), (2000, 8875), (2500, 7100), (2840, 6250), (3125, 5680), (3550, 5000)]