1811745

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 3581760

約数和(自身を除く): 1770015

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 163, 171, 195, 247, 285, 489, 585, 741, 815, 855, 1235, 1467, 2119, 2223, 2445, 3097, 3705, 6357, 7335, 9291, 10595, 11115, 15485, 19071, 27873, 31785, 40261, 46455, 95355, 120783, 139365, 201305, 362349, 603915, 1811745]

約数ペア:

[(1, 1811745), (3, 603915), (5, 362349), (9, 201305), (13, 139365), (15, 120783), (19, 95355), (39, 46455), (45, 40261), (57, 31785), (65, 27873), (95, 19071), (117, 15485), (163, 11115), (171, 10595), (195, 9291), (247, 7335), (285, 6357), (489, 3705), (585, 3097), (741, 2445), (815, 2223), (855, 2119), (1235, 1467)]