81850545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1319}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 163088640

約数和(自身を除く): 81238095

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 197, 315, 591, 985, 1319, 1379, 1773, 2955, 3957, 4137, 6595, 6895, 8865, 9233, 11871, 12411, 19785, 20685, 27699, 46165, 59355, 62055, 83097, 138495, 259843, 415485, 779529, 1299215, 1818901, 2338587, 3897645, 5456703, 9094505, 11692935, 16370109, 27283515, 81850545]

約数ペア:

[(1, 81850545), (3, 27283515), (5, 16370109), (7, 11692935), (9, 9094505), (15, 5456703), (21, 3897645), (35, 2338587), (45, 1818901), (63, 1299215), (105, 779529), (197, 415485), (315, 259843), (591, 138495), (985, 83097), (1319, 62055), (1379, 59355), (1773, 46165), (2955, 27699), (3957, 20685), (4137, 19785), (6595, 12411), (6895, 11871), (8865, 9233)]