80032520

素因数分解:

$2^3\times 5^1\times {\mathrm{2000813}}^1$

素因数の和:2000824

約数の個数: 16

約数和(自身を含む): 180073260

約数和(自身を除く): 100040740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2000813, 4001626, 8003252, 10004065, 16006504, 20008130, 40016260, 80032520]

約数ペア:

[(1, 80032520), (2, 40016260), (4, 20008130), (5, 16006504), (8, 10004065), (10, 8003252), (20, 4001626), (40, 2000813)]