210976605

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{587}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 428736672

約数和(自身を除く): 217760067

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 163, 245, 315, 441, 489, 587, 735, 815, 1141, 1467, 1761, 2205, 2445, 2935, 3423, 4109, 5283, 5705, 7335, 7987, 8805, 10269, 12327, 17115, 20545, 23961, 26415, 28763, 36981, 39935, 51345, 61635, 71883, 86289, 95681, 119805, 143815, 184905, 258867, 287043, 359415, 431445, 478405, 669767, 861129, 1294335, 1435215, 2009301, 3348835, 4305645, 4688369, 6027903, 10046505, 14065107, 23441845, 30139515, 42195321, 70325535, 210976605]

約数ペア:

[(1, 210976605), (3, 70325535), (5, 42195321), (7, 30139515), (9, 23441845), (15, 14065107), (21, 10046505), (35, 6027903), (45, 4688369), (49, 4305645), (63, 3348835), (105, 2009301), (147, 1435215), (163, 1294335), (245, 861129), (315, 669767), (441, 478405), (489, 431445), (587, 359415), (735, 287043), (815, 258867), (1141, 184905), (1467, 143815), (1761, 119805), (2205, 95681), (2445, 86289), (2935, 71883), (3423, 61635), (4109, 51345), (5283, 39935), (5705, 36981), (7335, 28763), (7987, 26415), (8805, 23961), (10269, 20545), (12327, 17115)]