2831000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 7020000

約数和(自身を除く): 4189000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 149, 152, 190, 200, 250, 298, 380, 475, 500, 596, 745, 760, 950, 1000, 1192, 1490, 1900, 2375, 2831, 2980, 3725, 3800, 4750, 5662, 5960, 7450, 9500, 11324, 14155, 14900, 18625, 19000, 22648, 28310, 29800, 37250, 56620, 70775, 74500, 113240, 141550, 149000, 283100, 353875, 566200, 707750, 1415500, 2831000]

約数ペア:

[(1, 2831000), (2, 1415500), (4, 707750), (5, 566200), (8, 353875), (10, 283100), (19, 149000), (20, 141550), (25, 113240), (38, 74500), (40, 70775), (50, 56620), (76, 37250), (95, 29800), (100, 28310), (125, 22648), (149, 19000), (152, 18625), (190, 14900), (200, 14155), (250, 11324), (298, 9500), (380, 7450), (475, 5960), (500, 5662), (596, 4750), (745, 3800), (760, 3725), (950, 2980), (1000, 2831), (1192, 2375), (1490, 1900)]