8266520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 19980000

約数和(自身を除く): 11713480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 149, 152, 190, 292, 298, 365, 380, 584, 596, 730, 745, 760, 1192, 1387, 1460, 1490, 2774, 2831, 2920, 2980, 5548, 5662, 5960, 6935, 10877, 11096, 11324, 13870, 14155, 21754, 22648, 27740, 28310, 43508, 54385, 55480, 56620, 87016, 108770, 113240, 206663, 217540, 413326, 435080, 826652, 1033315, 1653304, 2066630, 4133260, 8266520]

約数ペア:

[(1, 8266520), (2, 4133260), (4, 2066630), (5, 1653304), (8, 1033315), (10, 826652), (19, 435080), (20, 413326), (38, 217540), (40, 206663), (73, 113240), (76, 108770), (95, 87016), (146, 56620), (149, 55480), (152, 54385), (190, 43508), (292, 28310), (298, 27740), (365, 22648), (380, 21754), (584, 14155), (596, 13870), (730, 11324), (745, 11096), (760, 10877), (1192, 6935), (1387, 5960), (1460, 5662), (1490, 5548), (2774, 2980), (2831, 2920)]