312872020

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{18127}}^1$

素因数の和:18999

約数の個数: 24

約数和(自身を含む): 657828864

約数和(自身を除く): 344956844

約数列:

[1, 2, 4, 5, 10, 20, 863, 1726, 3452, 4315, 8630, 17260, 18127, 36254, 72508, 90635, 181270, 362540, 15643601, 31287202, 62574404, 78218005, 156436010, 312872020]

約数ペア:

[(1, 312872020), (2, 156436010), (4, 78218005), (5, 62574404), (10, 31287202), (20, 15643601), (863, 362540), (1726, 181270), (3452, 90635), (4315, 72508), (8630, 36254), (17260, 18127)]