66532720

素因数分解:

$2^4\times 5^1\times {\mathrm{831659}}^1$

素因数の和:831672

約数の個数: 20

約数和(自身を含む): 154688760

約数和(自身を除く): 88156040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 831659, 1663318, 3326636, 4158295, 6653272, 8316590, 13306544, 16633180, 33266360, 66532720]

約数ペア:

[(1, 66532720), (2, 33266360), (4, 16633180), (5, 13306544), (8, 8316590), (10, 6653272), (16, 4158295), (20, 3326636), (40, 1663318), (80, 831659)]