20342320

素因数分解:

$2^4\times 5^1\times {\mathrm{254279}}^1$

素因数の和:254292

約数の個数: 20

約数和(自身を含む): 47296080

約数和(自身を除く): 26953760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254279, 508558, 1017116, 1271395, 2034232, 2542790, 4068464, 5085580, 10171160, 20342320]

約数ペア:

[(1, 20342320), (2, 10171160), (4, 5085580), (5, 4068464), (8, 2542790), (10, 2034232), (16, 1271395), (20, 1017116), (40, 508558), (80, 254279)]