745605

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{263}}^1$

素因数の和:287

約数の個数: 40

約数和(自身を含む): 1533312

約数和(自身を除く): 787707

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 263, 315, 405, 567, 789, 945, 1315, 1841, 2367, 2835, 3945, 5523, 7101, 9205, 11835, 16569, 21303, 27615, 35505, 49707, 82845, 106515, 149121, 248535, 745605]

約数ペア:

[(1, 745605), (3, 248535), (5, 149121), (7, 106515), (9, 82845), (15, 49707), (21, 35505), (27, 27615), (35, 21303), (45, 16569), (63, 11835), (81, 9205), (105, 7101), (135, 5523), (189, 3945), (263, 2835), (315, 2367), (405, 1841), (567, 1315), (789, 945)]