68678260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490559}}^1$

素因数の和:490575

約数の個数: 24

約数和(自身を含む): 164828160

約数和(自身を除く): 96149900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490559, 981118, 1962236, 2452795, 3433913, 4905590, 6867826, 9811180, 13735652, 17169565, 34339130, 68678260]

約数ペア:

[(1, 68678260), (2, 34339130), (4, 17169565), (5, 13735652), (7, 9811180), (10, 6867826), (14, 4905590), (20, 3433913), (28, 2452795), (35, 1962236), (70, 981118), (140, 490559)]