81056820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103919}}^1$

素因数の和:103944

約数の個数: 48

約数和(自身を含む): 244419840

約数和(自身を除く): 163363020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 103919, 207838, 311757, 415676, 519595, 623514, 1039190, 1247028, 1350947, 1558785, 2078380, 2701894, 3117570, 4052841, 5403788, 6235140, 6754735, 8105682, 13509470, 16211364, 20264205, 27018940, 40528410, 81056820]

約数ペア:

[(1, 81056820), (2, 40528410), (3, 27018940), (4, 20264205), (5, 16211364), (6, 13509470), (10, 8105682), (12, 6754735), (13, 6235140), (15, 5403788), (20, 4052841), (26, 3117570), (30, 2701894), (39, 2078380), (52, 1558785), (60, 1350947), (65, 1247028), (78, 1039190), (130, 623514), (156, 519595), (195, 415676), (260, 311757), (390, 207838), (780, 103919)]