80108820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40459}}^1$

素因数の和:40485

約数の個数: 72

約数和(自身を含む): 265093920

約数和(自身を除く): 184985100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 40459, 80918, 121377, 161836, 202295, 242754, 364131, 404590, 445049, 485508, 606885, 728262, 809180, 890098, 1213770, 1335147, 1456524, 1780196, 1820655, 2225245, 2427540, 2670294, 3641310, 4005441, 4450490, 5340588, 6675735, 7282620, 8010882, 8900980, 13351470, 16021764, 20027205, 26702940, 40054410, 80108820]

約数ペア:

[(1, 80108820), (2, 40054410), (3, 26702940), (4, 20027205), (5, 16021764), (6, 13351470), (9, 8900980), (10, 8010882), (11, 7282620), (12, 6675735), (15, 5340588), (18, 4450490), (20, 4005441), (22, 3641310), (30, 2670294), (33, 2427540), (36, 2225245), (44, 1820655), (45, 1780196), (55, 1456524), (60, 1335147), (66, 1213770), (90, 890098), (99, 809180), (110, 728262), (132, 606885), (165, 485508), (180, 445049), (198, 404590), (220, 364131), (330, 242754), (396, 202295), (495, 161836), (660, 121377), (990, 80918), (1980, 40459)]