20419240

素因数分解:

$2^3\times 5^1\times {\mathrm{510481}}^1$

素因数の和:510492

約数の個数: 16

約数和(自身を含む): 45943380

約数和(自身を除く): 25524140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510481, 1020962, 2041924, 2552405, 4083848, 5104810, 10209620, 20419240]

約数ペア:

[(1, 20419240), (2, 10209620), (4, 5104810), (5, 4083848), (8, 2552405), (10, 2041924), (20, 1020962), (40, 510481)]