131756720

素因数分解:

$2^4\times 5^1\times {\mathrm{1646959}}^1$

素因数の和:1646972

約数の個数: 20

約数和(自身を含む): 306334560

約数和(自身を除く): 174577840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1646959, 3293918, 6587836, 8234795, 13175672, 16469590, 26351344, 32939180, 65878360, 131756720]

約数ペア:

[(1, 131756720), (2, 65878360), (4, 32939180), (5, 26351344), (8, 16469590), (10, 13175672), (16, 8234795), (20, 6587836), (40, 3293918), (80, 1646959)]