81961896

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 232848000

約数和(自身を除く): 150886104

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 34, 38, 51, 57, 68, 76, 97, 102, 109, 114, 136, 152, 194, 204, 218, 228, 291, 323, 327, 388, 408, 436, 456, 582, 646, 654, 776, 872, 969, 1164, 1292, 1308, 1649, 1843, 1853, 1938, 2071, 2328, 2584, 2616, 3298, 3686, 3706, 3876, 4142, 4947, 5529, 5559, 6213, 6596, 7372, 7412, 7752, 8284, 9894, 10573, 11058, 11118, 12426, 13192, 14744, 14824, 16568, 19788, 21146, 22116, 22236, 24852, 31331, 31719, 35207, 39576, 42292, 44232, 44472, 49704, 62662, 63438, 70414, 84584, 93993, 105621, 125324, 126876, 140828, 179741, 187986, 200887, 211242, 250648, 253752, 281656, 359482, 375972, 401774, 422484, 539223, 602661, 718964, 751944, 803548, 844968, 1078446, 1205322, 1437928, 1607096, 2156892, 2410644, 3415079, 4313784, 4821288, 6830158, 10245237, 13660316, 20490474, 27320632, 40980948, 81961896]

約数ペア:

[(1, 81961896), (2, 40980948), (3, 27320632), (4, 20490474), (6, 13660316), (8, 10245237), (12, 6830158), (17, 4821288), (19, 4313784), (24, 3415079), (34, 2410644), (38, 2156892), (51, 1607096), (57, 1437928), (68, 1205322), (76, 1078446), (97, 844968), (102, 803548), (109, 751944), (114, 718964), (136, 602661), (152, 539223), (194, 422484), (204, 401774), (218, 375972), (228, 359482), (291, 281656), (323, 253752), (327, 250648), (388, 211242), (408, 200887), (436, 187986), (456, 179741), (582, 140828), (646, 126876), (654, 125324), (776, 105621), (872, 93993), (969, 84584), (1164, 70414), (1292, 63438), (1308, 62662), (1649, 49704), (1843, 44472), (1853, 44232), (1938, 42292), (2071, 39576), (2328, 35207), (2584, 31719), (2616, 31331), (3298, 24852), (3686, 22236), (3706, 22116), (3876, 21146), (4142, 19788), (4947, 16568), (5529, 14824), (5559, 14744), (6213, 13192), (6596, 12426), (7372, 11118), (7412, 11058), (7752, 10573), (8284, 9894)]