81451748

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{70951}}^1$

素因数の和:71003

約数の個数: 24

約数和(自身を含む): 166879104

約数和(自身を除く): 85427356

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 70951, 141902, 283804, 496657, 993314, 1986628, 2908991, 5817982, 11635964, 20362937, 40725874, 81451748]

約数ペア:

[(1, 81451748), (2, 40725874), (4, 20362937), (7, 11635964), (14, 5817982), (28, 2908991), (41, 1986628), (82, 993314), (164, 496657), (287, 283804), (574, 141902), (1148, 70951)]