3999905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 6048000

約数和(自身を除く): 2048095

約数列:

[1, 5, 7, 13, 35, 59, 65, 91, 149, 295, 413, 455, 745, 767, 1043, 1937, 2065, 3835, 5215, 5369, 8791, 9685, 13559, 26845, 43955, 61537, 67795, 114283, 307685, 571415, 799981, 3999905]

約数ペア:

[(1, 3999905), (5, 799981), (7, 571415), (13, 307685), (35, 114283), (59, 67795), (65, 61537), (91, 43955), (149, 26845), (295, 13559), (413, 9685), (455, 8791), (745, 5369), (767, 5215), (1043, 3835), (1937, 2065)]