813560

素因数分解:

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

素因数の和:108

約数の個数: 48

約数和(自身を含む): 2044440

約数和(自身を除く): 1230880

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, 473, 860, 946, 1720, 1849, 1892, 2365, 3698, 3784, 4730, 7396, 9245, 9460, 14792, 18490, 18920, 20339, 36980, 40678, 73960, 81356, 101695, 162712, 203390, 406780, 813560]

約数ペア:

[(1, 813560), (2, 406780), (4, 203390), (5, 162712), (8, 101695), (10, 81356), (11, 73960), (20, 40678), (22, 36980), (40, 20339), (43, 18920), (44, 18490), (55, 14792), (86, 9460), (88, 9245), (110, 7396), (172, 4730), (215, 3784), (220, 3698), (344, 2365), (430, 1892), (440, 1849), (473, 1720), (860, 946)]