81809784

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:970

約数の個数: 128

約数和(自身を含む): 264268800

約数和(自身を除く): 182459016

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 61, 63, 72, 84, 108, 122, 126, 168, 183, 189, 216, 244, 252, 366, 378, 427, 488, 504, 549, 732, 756, 854, 887, 1098, 1281, 1464, 1512, 1647, 1708, 1774, 2196, 2562, 2661, 3294, 3416, 3548, 3843, 4392, 5124, 5322, 6209, 6588, 7096, 7686, 7983, 10248, 10644, 11529, 12418, 13176, 15372, 15966, 18627, 21288, 23058, 23949, 24836, 30744, 31932, 37254, 46116, 47898, 49672, 54107, 55881, 63864, 74508, 92232, 95796, 108214, 111762, 149016, 162321, 167643, 191592, 216428, 223524, 324642, 335286, 378749, 432856, 447048, 486963, 649284, 670572, 757498, 973926, 1136247, 1298568, 1341144, 1460889, 1514996, 1947852, 2272494, 2921778, 3029992, 3408741, 3895704, 4544988, 5843556, 6817482, 9089976, 10226223, 11687112, 13634964, 20452446, 27269928, 40904892, 81809784]

約数ペア:

[(1, 81809784), (2, 40904892), (3, 27269928), (4, 20452446), (6, 13634964), (7, 11687112), (8, 10226223), (9, 9089976), (12, 6817482), (14, 5843556), (18, 4544988), (21, 3895704), (24, 3408741), (27, 3029992), (28, 2921778), (36, 2272494), (42, 1947852), (54, 1514996), (56, 1460889), (61, 1341144), (63, 1298568), (72, 1136247), (84, 973926), (108, 757498), (122, 670572), (126, 649284), (168, 486963), (183, 447048), (189, 432856), (216, 378749), (244, 335286), (252, 324642), (366, 223524), (378, 216428), (427, 191592), (488, 167643), (504, 162321), (549, 149016), (732, 111762), (756, 108214), (854, 95796), (887, 92232), (1098, 74508), (1281, 63864), (1464, 55881), (1512, 54107), (1647, 49672), (1708, 47898), (1774, 46116), (2196, 37254), (2562, 31932), (2661, 30744), (3294, 24836), (3416, 23949), (3548, 23058), (3843, 21288), (4392, 18627), (5124, 15966), (5322, 15372), (6209, 13176), (6588, 12418), (7096, 11529), (7686, 10644), (7983, 10248)]