71861320

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{3191}}^1$

素因数の和:3765

約数の個数: 32

約数和(自身を含む): 162025920

約数和(自身を除く): 90164600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 3191, 4504, 5630, 6382, 11260, 12764, 15955, 22520, 25528, 31910, 63820, 127640, 1796533, 3593066, 7186132, 8982665, 14372264, 17965330, 35930660, 71861320]

約数ペア:

[(1, 71861320), (2, 35930660), (4, 17965330), (5, 14372264), (8, 8982665), (10, 7186132), (20, 3593066), (40, 1796533), (563, 127640), (1126, 63820), (2252, 31910), (2815, 25528), (3191, 22520), (4504, 15955), (5630, 12764), (6382, 11260)]