81546318

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 220492800

約数和(自身を除く): 138946482

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 43, 54, 58, 63, 86, 87, 126, 129, 173, 174, 189, 203, 258, 261, 301, 346, 378, 387, 406, 519, 522, 602, 609, 774, 783, 903, 1038, 1161, 1211, 1218, 1247, 1557, 1566, 1806, 1827, 2322, 2422, 2494, 2709, 3114, 3633, 3654, 3741, 4671, 5017, 5418, 5481, 7266, 7439, 7482, 8127, 8729, 9342, 10034, 10899, 10962, 11223, 14878, 15051, 16254, 17458, 21798, 22317, 22446, 26187, 30102, 32697, 33669, 35119, 44634, 45153, 52073, 52374, 65394, 66951, 67338, 70238, 78561, 90306, 104146, 105357, 133902, 135459, 156219, 157122, 200853, 210714, 215731, 235683, 270918, 312438, 316071, 401706, 431462, 468657, 471366, 632142, 647193, 937314, 948213, 1294386, 1405971, 1510117, 1896426, 1941579, 2811942, 3020234, 3883158, 4530351, 5824737, 9060702, 11649474, 13591053, 27182106, 40773159, 81546318]

約数ペア:

[(1, 81546318), (2, 40773159), (3, 27182106), (6, 13591053), (7, 11649474), (9, 9060702), (14, 5824737), (18, 4530351), (21, 3883158), (27, 3020234), (29, 2811942), (42, 1941579), (43, 1896426), (54, 1510117), (58, 1405971), (63, 1294386), (86, 948213), (87, 937314), (126, 647193), (129, 632142), (173, 471366), (174, 468657), (189, 431462), (203, 401706), (258, 316071), (261, 312438), (301, 270918), (346, 235683), (378, 215731), (387, 210714), (406, 200853), (519, 157122), (522, 156219), (602, 135459), (609, 133902), (774, 105357), (783, 104146), (903, 90306), (1038, 78561), (1161, 70238), (1211, 67338), (1218, 66951), (1247, 65394), (1557, 52374), (1566, 52073), (1806, 45153), (1827, 44634), (2322, 35119), (2422, 33669), (2494, 32697), (2709, 30102), (3114, 26187), (3633, 22446), (3654, 22317), (3741, 21798), (4671, 17458), (5017, 16254), (5418, 15051), (5481, 14878), (7266, 11223), (7439, 10962), (7482, 10899), (8127, 10034), (8729, 9342)]