180797320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{410903}}^1$

素因数の和:410925

約数の個数: 32

約数和(自身を含む): 443776320

約数和(自身を除く): 262979000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 410903, 821806, 1643612, 2054515, 3287224, 4109030, 4519933, 8218060, 9039866, 16436120, 18079732, 22599665, 36159464, 45199330, 90398660, 180797320]

約数ペア:

[(1, 180797320), (2, 90398660), (4, 45199330), (5, 36159464), (8, 22599665), (10, 18079732), (11, 16436120), (20, 9039866), (22, 8218060), (40, 4519933), (44, 4109030), (55, 3287224), (88, 2054515), (110, 1643612), (220, 821806), (440, 410903)]