81755748

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 212983680

約数和(自身を除く): 131227932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 211, 229, 282, 422, 423, 458, 564, 633, 687, 844, 846, 916, 1266, 1374, 1692, 1899, 2061, 2532, 2748, 3798, 4122, 7596, 8244, 9917, 10763, 19834, 21526, 29751, 32289, 39668, 43052, 48319, 59502, 64578, 89253, 96638, 96867, 119004, 129156, 144957, 178506, 193276, 193734, 289914, 357012, 387468, 434871, 579828, 869742, 1739484, 2270993, 4541986, 6812979, 9083972, 13625958, 20438937, 27251916, 40877874, 81755748]

約数ペア:

[(1, 81755748), (2, 40877874), (3, 27251916), (4, 20438937), (6, 13625958), (9, 9083972), (12, 6812979), (18, 4541986), (36, 2270993), (47, 1739484), (94, 869742), (141, 579828), (188, 434871), (211, 387468), (229, 357012), (282, 289914), (422, 193734), (423, 193276), (458, 178506), (564, 144957), (633, 129156), (687, 119004), (844, 96867), (846, 96638), (916, 89253), (1266, 64578), (1374, 59502), (1692, 48319), (1899, 43052), (2061, 39668), (2532, 32289), (2748, 29751), (3798, 21526), (4122, 19834), (7596, 10763), (8244, 9917)]