2481820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 5896800

約数和(自身を除く): 3414980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 389, 580, 638, 778, 1276, 1556, 1595, 1945, 3190, 3890, 4279, 6380, 7780, 8558, 11281, 17116, 21395, 22562, 42790, 45124, 56405, 85580, 112810, 124091, 225620, 248182, 496364, 620455, 1240910, 2481820]

約数ペア:

[(1, 2481820), (2, 1240910), (4, 620455), (5, 496364), (10, 248182), (11, 225620), (20, 124091), (22, 112810), (29, 85580), (44, 56405), (55, 45124), (58, 42790), (110, 22562), (116, 21395), (145, 17116), (220, 11281), (290, 8558), (319, 7780), (389, 6380), (580, 4279), (638, 3890), (778, 3190), (1276, 1945), (1556, 1595)]