81031005

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{523}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 154005696

約数和(自身を除く): 72974691

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 313, 495, 523, 939, 1565, 1569, 2615, 2817, 3443, 4695, 4707, 5753, 7845, 10329, 14085, 17215, 17259, 23535, 28765, 30987, 51645, 51777, 86295, 154935, 163699, 258885, 491097, 818495, 1473291, 1800689, 2455485, 5402067, 7366455, 9003445, 16206201, 27010335, 81031005]

約数ペア:

[(1, 81031005), (3, 27010335), (5, 16206201), (9, 9003445), (11, 7366455), (15, 5402067), (33, 2455485), (45, 1800689), (55, 1473291), (99, 818495), (165, 491097), (313, 258885), (495, 163699), (523, 154935), (939, 86295), (1565, 51777), (1569, 51645), (2615, 30987), (2817, 28765), (3443, 23535), (4695, 17259), (4707, 17215), (5753, 14085), (7845, 10329)]