161218008

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 513835920

約数和(自身を除く): 352617912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 43, 56, 63, 72, 84, 86, 126, 129, 168, 172, 173, 252, 258, 301, 344, 346, 387, 504, 516, 519, 602, 692, 774, 903, 1032, 1038, 1204, 1211, 1384, 1548, 1557, 1806, 1849, 2076, 2408, 2422, 2709, 3096, 3114, 3612, 3633, 3698, 4152, 4844, 5418, 5547, 6228, 7224, 7266, 7396, 7439, 9688, 10836, 10899, 11094, 12456, 12943, 14532, 14792, 14878, 16641, 21672, 21798, 22188, 22317, 25886, 29064, 29756, 33282, 38829, 43596, 44376, 44634, 51772, 52073, 59512, 66564, 66951, 77658, 87192, 89268, 103544, 104146, 116487, 133128, 133902, 155316, 156219, 178536, 208292, 232974, 267804, 310632, 312438, 319877, 416584, 465948, 468657, 535608, 624876, 639754, 931896, 937314, 959631, 1249752, 1279508, 1874628, 1919262, 2239139, 2559016, 2878893, 3749256, 3838524, 4478278, 5757786, 6717417, 7677048, 8956556, 11515572, 13434834, 17913112, 20152251, 23031144, 26869668, 40304502, 53739336, 80609004, 161218008]

約数ペア:

[(1, 161218008), (2, 80609004), (3, 53739336), (4, 40304502), (6, 26869668), (7, 23031144), (8, 20152251), (9, 17913112), (12, 13434834), (14, 11515572), (18, 8956556), (21, 7677048), (24, 6717417), (28, 5757786), (36, 4478278), (42, 3838524), (43, 3749256), (56, 2878893), (63, 2559016), (72, 2239139), (84, 1919262), (86, 1874628), (126, 1279508), (129, 1249752), (168, 959631), (172, 937314), (173, 931896), (252, 639754), (258, 624876), (301, 535608), (344, 468657), (346, 465948), (387, 416584), (504, 319877), (516, 312438), (519, 310632), (602, 267804), (692, 232974), (774, 208292), (903, 178536), (1032, 156219), (1038, 155316), (1204, 133902), (1211, 133128), (1384, 116487), (1548, 104146), (1557, 103544), (1806, 89268), (1849, 87192), (2076, 77658), (2408, 66951), (2422, 66564), (2709, 59512), (3096, 52073), (3114, 51772), (3612, 44634), (3633, 44376), (3698, 43596), (4152, 38829), (4844, 33282), (5418, 29756), (5547, 29064), (6228, 25886), (7224, 22317), (7266, 22188), (7396, 21798), (7439, 21672), (9688, 16641), (10836, 14878), (10899, 14792), (11094, 14532), (12456, 12943)]