81005730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3919}}^1$

素因数の和:3995

約数の個数: 64

約数和(自身を含む): 213373440

約数和(自身を除く): 132367710

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1378, 1590, 2067, 3445, 3919, 4134, 6890, 7838, 10335, 11757, 19595, 20670, 23514, 39190, 50947, 58785, 101894, 117570, 152841, 207707, 254735, 305682, 415414, 509470, 623121, 764205, 1038535, 1246242, 1528410, 2077070, 2700191, 3115605, 5400382, 6231210, 8100573, 13500955, 16201146, 27001910, 40502865, 81005730]

約数ペア:

[(1, 81005730), (2, 40502865), (3, 27001910), (5, 16201146), (6, 13500955), (10, 8100573), (13, 6231210), (15, 5400382), (26, 3115605), (30, 2700191), (39, 2077070), (53, 1528410), (65, 1246242), (78, 1038535), (106, 764205), (130, 623121), (159, 509470), (195, 415414), (265, 305682), (318, 254735), (390, 207707), (530, 152841), (689, 117570), (795, 101894), (1378, 58785), (1590, 50947), (2067, 39190), (3445, 23514), (3919, 20670), (4134, 19595), (6890, 11757), (7838, 10335)]