3258680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2039

約数の個数: 32

約数和(自身を含む): 7514640

約数和(自身を除く): 4255960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1987, 3974, 7948, 9935, 15896, 19870, 39740, 79480, 81467, 162934, 325868, 407335, 651736, 814670, 1629340, 3258680]

約数ペア:

[(1, 3258680), (2, 1629340), (4, 814670), (5, 651736), (8, 407335), (10, 325868), (20, 162934), (40, 81467), (41, 79480), (82, 39740), (164, 19870), (205, 15896), (328, 9935), (410, 7948), (820, 3974), (1640, 1987)]