81591804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 247665600

約数和(自身を除く): 166073796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 53, 63, 82, 84, 106, 123, 126, 149, 159, 164, 212, 246, 252, 287, 298, 318, 369, 371, 447, 477, 492, 574, 596, 636, 738, 742, 861, 894, 954, 1043, 1113, 1148, 1341, 1476, 1484, 1722, 1788, 1908, 2086, 2173, 2226, 2583, 2682, 3129, 3339, 3444, 4172, 4346, 4452, 5166, 5364, 6109, 6258, 6519, 6678, 7897, 8692, 9387, 10332, 12218, 12516, 13038, 13356, 15211, 15794, 18327, 18774, 19557, 23691, 24436, 26076, 30422, 31588, 36654, 37548, 39114, 42763, 45633, 47382, 54981, 55279, 60844, 71073, 73308, 78228, 85526, 91266, 94764, 109962, 110558, 128289, 136899, 142146, 165837, 171052, 182532, 219924, 221116, 256578, 273798, 284292, 323777, 331674, 384867, 497511, 513156, 547596, 647554, 663348, 769734, 971331, 995022, 1295108, 1539468, 1942662, 1990044, 2266439, 2913993, 3885324, 4532878, 5827986, 6799317, 9065756, 11655972, 13598634, 20397951, 27197268, 40795902, 81591804]

約数ペア:

[(1, 81591804), (2, 40795902), (3, 27197268), (4, 20397951), (6, 13598634), (7, 11655972), (9, 9065756), (12, 6799317), (14, 5827986), (18, 4532878), (21, 3885324), (28, 2913993), (36, 2266439), (41, 1990044), (42, 1942662), (53, 1539468), (63, 1295108), (82, 995022), (84, 971331), (106, 769734), (123, 663348), (126, 647554), (149, 547596), (159, 513156), (164, 497511), (212, 384867), (246, 331674), (252, 323777), (287, 284292), (298, 273798), (318, 256578), (369, 221116), (371, 219924), (447, 182532), (477, 171052), (492, 165837), (574, 142146), (596, 136899), (636, 128289), (738, 110558), (742, 109962), (861, 94764), (894, 91266), (954, 85526), (1043, 78228), (1113, 73308), (1148, 71073), (1341, 60844), (1476, 55279), (1484, 54981), (1722, 47382), (1788, 45633), (1908, 42763), (2086, 39114), (2173, 37548), (2226, 36654), (2583, 31588), (2682, 30422), (3129, 26076), (3339, 24436), (3444, 23691), (4172, 19557), (4346, 18774), (4452, 18327), (5166, 15794), (5364, 15211), (6109, 13356), (6258, 13038), (6519, 12516), (6678, 12218), (7897, 10332), (8692, 9387)]