81415180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1823}}^1$

素因数の和:1879

約数の個数: 96

約数和(自身を含む): 220631040

約数和(自身を除く): 139215860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 770, 812, 1015, 1276, 1540, 1595, 1823, 2030, 2233, 3190, 3646, 4060, 4466, 6380, 7292, 8932, 9115, 11165, 12761, 18230, 20053, 22330, 25522, 36460, 40106, 44660, 51044, 52867, 63805, 80212, 100265, 105734, 127610, 140371, 200530, 211468, 255220, 264335, 280742, 370069, 401060, 528670, 561484, 581537, 701855, 740138, 1057340, 1163074, 1403710, 1480276, 1850345, 2326148, 2807420, 2907685, 3700690, 4070759, 5815370, 7401380, 8141518, 11630740, 16283036, 20353795, 40707590, 81415180]

約数ペア:

[(1, 81415180), (2, 40707590), (4, 20353795), (5, 16283036), (7, 11630740), (10, 8141518), (11, 7401380), (14, 5815370), (20, 4070759), (22, 3700690), (28, 2907685), (29, 2807420), (35, 2326148), (44, 1850345), (55, 1480276), (58, 1403710), (70, 1163074), (77, 1057340), (110, 740138), (116, 701855), (140, 581537), (145, 561484), (154, 528670), (203, 401060), (220, 370069), (290, 280742), (308, 264335), (319, 255220), (385, 211468), (406, 200530), (580, 140371), (638, 127610), (770, 105734), (812, 100265), (1015, 80212), (1276, 63805), (1540, 52867), (1595, 51044), (1823, 44660), (2030, 40106), (2233, 36460), (3190, 25522), (3646, 22330), (4060, 20053), (4466, 18230), (6380, 12761), (7292, 11165), (8932, 9115)]