3940280

素因数分解:

$2^3\times 5^1\times {\mathrm{98507}}^1$

素因数の和:98518

約数の個数: 16

約数和(自身を含む): 8865720

約数和(自身を除く): 4925440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 98507, 197014, 394028, 492535, 788056, 985070, 1970140, 3940280]

約数ペア:

[(1, 3940280), (2, 1970140), (4, 985070), (5, 788056), (8, 492535), (10, 394028), (20, 197014), (40, 98507)]