20331280

素因数分解:

$2^4\times 5^1\times {\mathrm{254141}}^1$

素因数の和:254154

約数の個数: 20

約数和(自身を含む): 47270412

約数和(自身を除く): 26939132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254141, 508282, 1016564, 1270705, 2033128, 2541410, 4066256, 5082820, 10165640, 20331280]

約数ペア:

[(1, 20331280), (2, 10165640), (4, 5082820), (5, 4066256), (8, 2541410), (10, 2033128), (16, 1270705), (20, 1016564), (40, 508282), (80, 254141)]