128242520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458009}}^1$

素因数の和:458027

約数の個数: 32

約数和(自身を含む): 329767200

約数和(自身を除く): 201524680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458009, 916018, 1832036, 2290045, 3206063, 3664072, 4580090, 6412126, 9160180, 12824252, 16030315, 18320360, 25648504, 32060630, 64121260, 128242520]

約数ペア:

[(1, 128242520), (2, 64121260), (4, 32060630), (5, 25648504), (7, 18320360), (8, 16030315), (10, 12824252), (14, 9160180), (20, 6412126), (28, 4580090), (35, 3664072), (40, 3206063), (56, 2290045), (70, 1832036), (140, 916018), (280, 458009)]