80572840

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4547}}^1$

素因数の和:5001

約数の個数: 32

約数和(自身を含む): 181738080

約数和(自身を除く): 101165240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 4547, 8860, 9094, 17720, 18188, 22735, 36376, 45470, 90940, 181880, 2014321, 4028642, 8057284, 10071605, 16114568, 20143210, 40286420, 80572840]

約数ペア:

[(1, 80572840), (2, 40286420), (4, 20143210), (5, 16114568), (8, 10071605), (10, 8057284), (20, 4028642), (40, 2014321), (443, 181880), (886, 90940), (1772, 45470), (2215, 36376), (3544, 22735), (4430, 18188), (4547, 17720), (8860, 9094)]