20876720

素因数分解:

$2^4\times 5^1\times {\mathrm{260959}}^1$

素因数の和:260972

約数の個数: 20

約数和(自身を含む): 48538560

約数和(自身を除く): 27661840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260959, 521918, 1043836, 1304795, 2087672, 2609590, 4175344, 5219180, 10438360, 20876720]

約数ペア:

[(1, 20876720), (2, 10438360), (4, 5219180), (5, 4175344), (8, 2609590), (10, 2087672), (16, 1304795), (20, 1043836), (40, 521918), (80, 260959)]