81069156

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{827}}^1$

素因数の和:1233

約数の個数: 72

約数和(自身を含む): 235085760

約数和(自身を除く): 154016604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 389, 778, 827, 1167, 1556, 1654, 2334, 2481, 2723, 3308, 3501, 4668, 4962, 5446, 5789, 7002, 7443, 8169, 9924, 10892, 11578, 14004, 14886, 16338, 17367, 23156, 24507, 29772, 32676, 34734, 49014, 52101, 69468, 98028, 104202, 208404, 321703, 643406, 965109, 1286812, 1930218, 2251921, 2895327, 3860436, 4503842, 5790654, 6755763, 9007684, 11581308, 13511526, 20267289, 27023052, 40534578, 81069156]

約数ペア:

[(1, 81069156), (2, 40534578), (3, 27023052), (4, 20267289), (6, 13511526), (7, 11581308), (9, 9007684), (12, 6755763), (14, 5790654), (18, 4503842), (21, 3860436), (28, 2895327), (36, 2251921), (42, 1930218), (63, 1286812), (84, 965109), (126, 643406), (252, 321703), (389, 208404), (778, 104202), (827, 98028), (1167, 69468), (1556, 52101), (1654, 49014), (2334, 34734), (2481, 32676), (2723, 29772), (3308, 24507), (3501, 23156), (4668, 17367), (4962, 16338), (5446, 14886), (5789, 14004), (7002, 11578), (7443, 10892), (8169, 9924)]