408038467180

素因数分解:

$2^2\times 5^1\times {\mathrm{20401923359}}^1$

素因数の和:20401923368

約数の個数: 12

約数和(自身を含む): 856880781120

約数和(自身を除く): 448842313940

約数列:

[1, 2, 4, 5, 10, 20, 20401923359, 40803846718, 81607693436, 102009616795, 204019233590, 408038467180]

約数ペア:

[(1, 408038467180), (2, 204019233590), (4, 102009616795), (5, 81607693436), (10, 40803846718), (20, 20401923359)]