257831240

素因数分解:

$2^3\times 5^1\times {\mathrm{1753}}^1\times {\mathrm{3677}}^1$

素因数の和:5441

約数の個数: 32

約数和(自身を含む): 580609080

約数和(自身を除く): 322777840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1753, 3506, 3677, 7012, 7354, 8765, 14024, 14708, 17530, 18385, 29416, 35060, 36770, 70120, 73540, 147080, 6445781, 12891562, 25783124, 32228905, 51566248, 64457810, 128915620, 257831240]

約数ペア:

[(1, 257831240), (2, 128915620), (4, 64457810), (5, 51566248), (8, 32228905), (10, 25783124), (20, 12891562), (40, 6445781), (1753, 147080), (3506, 73540), (3677, 70120), (7012, 36770), (7354, 35060), (8765, 29416), (14024, 18385), (14708, 17530)]