81278904

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 248832000

約数和(自身を除く): 167553096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 149, 168, 191, 204, 238, 298, 357, 382, 408, 447, 476, 573, 596, 714, 764, 894, 952, 1043, 1146, 1192, 1337, 1428, 1528, 1788, 2086, 2292, 2533, 2674, 2856, 3129, 3247, 3576, 4011, 4172, 4584, 5066, 5348, 6258, 6494, 7599, 8022, 8344, 9741, 10132, 10696, 12516, 12988, 15198, 16044, 17731, 19482, 20264, 22729, 25032, 25976, 28459, 30396, 32088, 35462, 38964, 45458, 53193, 56918, 60792, 68187, 70924, 77928, 85377, 90916, 106386, 113836, 136374, 141848, 170754, 181832, 199213, 212772, 227672, 272748, 341508, 398426, 425544, 483803, 545496, 597639, 683016, 796852, 967606, 1195278, 1451409, 1593704, 1935212, 2390556, 2902818, 3386621, 3870424, 4781112, 5805636, 6773242, 10159863, 11611272, 13546484, 20319726, 27092968, 40639452, 81278904]

約数ペア:

[(1, 81278904), (2, 40639452), (3, 27092968), (4, 20319726), (6, 13546484), (7, 11611272), (8, 10159863), (12, 6773242), (14, 5805636), (17, 4781112), (21, 3870424), (24, 3386621), (28, 2902818), (34, 2390556), (42, 1935212), (51, 1593704), (56, 1451409), (68, 1195278), (84, 967606), (102, 796852), (119, 683016), (136, 597639), (149, 545496), (168, 483803), (191, 425544), (204, 398426), (238, 341508), (298, 272748), (357, 227672), (382, 212772), (408, 199213), (447, 181832), (476, 170754), (573, 141848), (596, 136374), (714, 113836), (764, 106386), (894, 90916), (952, 85377), (1043, 77928), (1146, 70924), (1192, 68187), (1337, 60792), (1428, 56918), (1528, 53193), (1788, 45458), (2086, 38964), (2292, 35462), (2533, 32088), (2674, 30396), (2856, 28459), (3129, 25976), (3247, 25032), (3576, 22729), (4011, 20264), (4172, 19482), (4584, 17731), (5066, 16044), (5348, 15198), (6258, 12988), (6494, 12516), (7599, 10696), (8022, 10132), (8344, 9741)]