81706856

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 204595200

約数和(自身を除く): 122888344

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 73, 77, 79, 88, 92, 146, 154, 158, 161, 184, 253, 292, 308, 316, 322, 506, 511, 553, 584, 616, 632, 644, 803, 869, 1012, 1022, 1106, 1288, 1606, 1679, 1738, 1771, 1817, 2024, 2044, 2212, 3212, 3358, 3476, 3542, 3634, 4088, 4424, 5621, 5767, 6083, 6424, 6716, 6952, 7084, 7268, 11242, 11534, 11753, 12166, 12719, 13432, 14168, 14536, 18469, 19987, 22484, 23068, 23506, 24332, 25438, 36938, 39974, 40369, 44968, 46136, 47012, 48664, 50876, 63437, 73876, 79948, 80738, 94024, 101752, 126874, 129283, 132641, 139909, 147752, 159896, 161476, 253748, 258566, 265282, 279818, 322952, 444059, 507496, 517132, 530564, 559636, 888118, 928487, 1034264, 1061128, 1119272, 1459051, 1776236, 1856974, 2918102, 3552472, 3713948, 5836204, 7427896, 10213357, 11672408, 20426714, 40853428, 81706856]

約数ペア:

[(1, 81706856), (2, 40853428), (4, 20426714), (7, 11672408), (8, 10213357), (11, 7427896), (14, 5836204), (22, 3713948), (23, 3552472), (28, 2918102), (44, 1856974), (46, 1776236), (56, 1459051), (73, 1119272), (77, 1061128), (79, 1034264), (88, 928487), (92, 888118), (146, 559636), (154, 530564), (158, 517132), (161, 507496), (184, 444059), (253, 322952), (292, 279818), (308, 265282), (316, 258566), (322, 253748), (506, 161476), (511, 159896), (553, 147752), (584, 139909), (616, 132641), (632, 129283), (644, 126874), (803, 101752), (869, 94024), (1012, 80738), (1022, 79948), (1106, 73876), (1288, 63437), (1606, 50876), (1679, 48664), (1738, 47012), (1771, 46136), (1817, 44968), (2024, 40369), (2044, 39974), (2212, 36938), (3212, 25438), (3358, 24332), (3476, 23506), (3542, 23068), (3634, 22484), (4088, 19987), (4424, 18469), (5621, 14536), (5767, 14168), (6083, 13432), (6424, 12719), (6716, 12166), (6952, 11753), (7084, 11534), (7268, 11242)]