20040195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 19496445

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 103, 105, 109, 119, 255, 309, 327, 357, 515, 545, 595, 721, 763, 1545, 1635, 1751, 1785, 1853, 2163, 2289, 3605, 3815, 5253, 5559, 8755, 9265, 10815, 11227, 11445, 12257, 12971, 26265, 27795, 33681, 36771, 38913, 56135, 61285, 64855, 78589, 168405, 183855, 190859, 194565, 235767, 392945, 572577, 954295, 1178835, 1336013, 2862885, 4008039, 6680065, 20040195]

約数ペア:

[(1, 20040195), (3, 6680065), (5, 4008039), (7, 2862885), (15, 1336013), (17, 1178835), (21, 954295), (35, 572577), (51, 392945), (85, 235767), (103, 194565), (105, 190859), (109, 183855), (119, 168405), (255, 78589), (309, 64855), (327, 61285), (357, 56135), (515, 38913), (545, 36771), (595, 33681), (721, 27795), (763, 26265), (1545, 12971), (1635, 12257), (1751, 11445), (1785, 11227), (1853, 10815), (2163, 9265), (2289, 8755), (3605, 5559), (3815, 5253)]