8722120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 21954240

約数和(自身を除く): 13232120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 461, 473, 860, 922, 946, 1720, 1844, 1892, 2305, 2365, 3688, 3784, 4610, 4730, 5071, 9220, 9460, 10142, 18440, 18920, 19823, 20284, 25355, 39646, 40568, 50710, 79292, 99115, 101420, 158584, 198230, 202840, 218053, 396460, 436106, 792920, 872212, 1090265, 1744424, 2180530, 4361060, 8722120]

約数ペア:

[(1, 8722120), (2, 4361060), (4, 2180530), (5, 1744424), (8, 1090265), (10, 872212), (11, 792920), (20, 436106), (22, 396460), (40, 218053), (43, 202840), (44, 198230), (55, 158584), (86, 101420), (88, 99115), (110, 79292), (172, 50710), (215, 40568), (220, 39646), (344, 25355), (430, 20284), (440, 19823), (461, 18920), (473, 18440), (860, 10142), (922, 9460), (946, 9220), (1720, 5071), (1844, 4730), (1892, 4610), (2305, 3784), (2365, 3688)]