218215940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{266117}}^1$

素因数の和:266167

約数の個数: 24

約数和(自身を含む): 469432152

約数和(自身を除く): 251216212

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 266117, 532234, 1064468, 1330585, 2661170, 5322340, 10910797, 21821594, 43643188, 54553985, 109107970, 218215940]

約数ペア:

[(1, 218215940), (2, 109107970), (4, 54553985), (5, 43643188), (10, 21821594), (20, 10910797), (41, 5322340), (82, 2661170), (164, 1330585), (205, 1064468), (410, 532234), (820, 266117)]