132128720

素因数分解:

$2^4\times 5^1\times {\mathrm{1651609}}^1$

素因数の和:1651622

約数の個数: 20

約数和(自身を含む): 307199460

約数和(自身を除く): 175070740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1651609, 3303218, 6606436, 8258045, 13212872, 16516090, 26425744, 33032180, 66064360, 132128720]

約数ペア:

[(1, 132128720), (2, 66064360), (4, 33032180), (5, 26425744), (8, 16516090), (10, 13212872), (16, 8258045), (20, 6606436), (40, 3303218), (80, 1651609)]