81232578

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 207267840

約数和(自身を除く): 126035262

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 311, 378, 622, 691, 933, 1382, 1866, 2073, 2177, 2799, 4146, 4354, 4837, 5598, 6219, 6531, 8397, 9674, 12438, 13062, 14511, 16794, 18657, 19593, 29022, 37314, 39186, 43533, 58779, 87066, 117558, 130599, 214901, 261198, 429802, 644703, 1289406, 1504307, 1934109, 3008614, 3868218, 4512921, 5802327, 9025842, 11604654, 13538763, 27077526, 40616289, 81232578]

約数ペア:

[(1, 81232578), (2, 40616289), (3, 27077526), (6, 13538763), (7, 11604654), (9, 9025842), (14, 5802327), (18, 4512921), (21, 3868218), (27, 3008614), (42, 1934109), (54, 1504307), (63, 1289406), (126, 644703), (189, 429802), (311, 261198), (378, 214901), (622, 130599), (691, 117558), (933, 87066), (1382, 58779), (1866, 43533), (2073, 39186), (2177, 37314), (2799, 29022), (4146, 19593), (4354, 18657), (4837, 16794), (5598, 14511), (6219, 13062), (6531, 12438), (8397, 9674)]