81226288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 186988032

約数和(自身を除く): 105761744

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 131, 143, 176, 208, 262, 271, 286, 524, 542, 572, 1048, 1084, 1144, 1441, 1703, 2096, 2168, 2288, 2882, 2981, 3406, 3523, 4336, 5764, 5962, 6812, 7046, 11528, 11924, 13624, 14092, 18733, 23056, 23848, 27248, 28184, 35501, 37466, 38753, 47696, 56368, 71002, 74932, 77506, 142004, 149864, 155012, 284008, 299728, 310024, 390511, 461513, 568016, 620048, 781022, 923026, 1562044, 1846052, 3124088, 3692104, 5076643, 6248176, 7384208, 10153286, 20306572, 40613144, 81226288]

約数ペア:

[(1, 81226288), (2, 40613144), (4, 20306572), (8, 10153286), (11, 7384208), (13, 6248176), (16, 5076643), (22, 3692104), (26, 3124088), (44, 1846052), (52, 1562044), (88, 923026), (104, 781022), (131, 620048), (143, 568016), (176, 461513), (208, 390511), (262, 310024), (271, 299728), (286, 284008), (524, 155012), (542, 149864), (572, 142004), (1048, 77506), (1084, 74932), (1144, 71002), (1441, 56368), (1703, 47696), (2096, 38753), (2168, 37466), (2288, 35501), (2882, 28184), (2981, 27248), (3406, 23848), (3523, 23056), (4336, 18733), (5764, 14092), (5962, 13624), (6812, 11924), (7046, 11528)]