218219240

素因数分解:

$2^3\times 5^1\times {\mathrm{5455481}}^1$

素因数の和:5455492

約数の個数: 16

約数和(自身を含む): 490993380

約数和(自身を除く): 272774140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5455481, 10910962, 21821924, 27277405, 43643848, 54554810, 109109620, 218219240]

約数ペア:

[(1, 218219240), (2, 109109620), (4, 54554810), (5, 43643848), (8, 27277405), (10, 21821924), (20, 10910962), (40, 5455481)]