20121455080

素因数分解:

$2^3\times 5^1\times {\mathrm{6857}}^1\times {\mathrm{73361}}^1$

素因数の和:80229

約数の個数: 32

約数和(自身を含む): 45280493640

約数和(自身を除く): 25159038560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6857, 13714, 27428, 34285, 54856, 68570, 73361, 137140, 146722, 274280, 293444, 366805, 586888, 733610, 1467220, 2934440, 503036377, 1006072754, 2012145508, 2515181885, 4024291016, 5030363770, 10060727540, 20121455080]

約数ペア:

[(1, 20121455080), (2, 10060727540), (4, 5030363770), (5, 4024291016), (8, 2515181885), (10, 2012145508), (20, 1006072754), (40, 503036377), (6857, 2934440), (13714, 1467220), (27428, 733610), (34285, 586888), (54856, 366805), (68570, 293444), (73361, 274280), (137140, 146722)]