16990160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 27203440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 449, 473, 688, 860, 880, 898, 946, 1720, 1796, 1892, 2245, 2365, 3440, 3592, 3784, 4490, 4730, 4939, 7184, 7568, 8980, 9460, 9878, 17960, 18920, 19307, 19756, 24695, 35920, 37840, 38614, 39512, 49390, 77228, 79024, 96535, 98780, 154456, 193070, 197560, 212377, 308912, 386140, 395120, 424754, 772280, 849508, 1061885, 1544560, 1699016, 2123770, 3398032, 4247540, 8495080, 16990160]

約数ペア:

[(1, 16990160), (2, 8495080), (4, 4247540), (5, 3398032), (8, 2123770), (10, 1699016), (11, 1544560), (16, 1061885), (20, 849508), (22, 772280), (40, 424754), (43, 395120), (44, 386140), (55, 308912), (80, 212377), (86, 197560), (88, 193070), (110, 154456), (172, 98780), (176, 96535), (215, 79024), (220, 77228), (344, 49390), (430, 39512), (440, 38614), (449, 37840), (473, 35920), (688, 24695), (860, 19756), (880, 19307), (898, 18920), (946, 17960), (1720, 9878), (1796, 9460), (1892, 8980), (2245, 7568), (2365, 7184), (3440, 4939), (3592, 4730), (3784, 4490)]