20882680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5737}}^1$

素因数の和:5768

約数の個数: 64

約数和(自身を含む): 57839040

約数和(自身を除く): 36956360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5737, 11474, 22948, 28685, 40159, 45896, 57370, 74581, 80318, 114740, 149162, 160636, 200795, 229480, 298324, 321272, 372905, 401590, 522067, 596648, 745810, 803180, 1044134, 1491620, 1606360, 2088268, 2610335, 2983240, 4176536, 5220670, 10441340, 20882680]

約数ペア:

[(1, 20882680), (2, 10441340), (4, 5220670), (5, 4176536), (7, 2983240), (8, 2610335), (10, 2088268), (13, 1606360), (14, 1491620), (20, 1044134), (26, 803180), (28, 745810), (35, 596648), (40, 522067), (52, 401590), (56, 372905), (65, 321272), (70, 298324), (91, 229480), (104, 200795), (130, 160636), (140, 149162), (182, 114740), (260, 80318), (280, 74581), (364, 57370), (455, 45896), (520, 40159), (728, 28685), (910, 22948), (1820, 11474), (3640, 5737)]