80288720

素因数分解:

$2^4\times 5^1\times {\mathrm{1003609}}^1$

素因数の和:1003622

約数の個数: 20

約数和(自身を含む): 186671460

約数和(自身を除く): 106382740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1003609, 2007218, 4014436, 5018045, 8028872, 10036090, 16057744, 20072180, 40144360, 80288720]

約数ペア:

[(1, 80288720), (2, 40144360), (4, 20072180), (5, 16057744), (8, 10036090), (10, 8028872), (16, 5018045), (20, 4014436), (40, 2007218), (80, 1003609)]