1629340

素因数分解:

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

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 3506832

約数和(自身を除く): 1877492

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1987, 3974, 7948, 9935, 19870, 39740, 81467, 162934, 325868, 407335, 814670, 1629340]

約数ペア:

[(1, 1629340), (2, 814670), (4, 407335), (5, 325868), (10, 162934), (20, 81467), (41, 39740), (82, 19870), (164, 9935), (205, 7948), (410, 3974), (820, 1987)]