20012004

素因数分解:

$2^2\times 3^2\times {\mathrm{587}}^1\times {\mathrm{947}}^1$

素因数の和:1544

約数の個数: 36

約数和(自身を含む): 50725584

約数和(自身を除く): 30713580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 587, 947, 1174, 1761, 1894, 2348, 2841, 3522, 3788, 5283, 5682, 7044, 8523, 10566, 11364, 17046, 21132, 34092, 555889, 1111778, 1667667, 2223556, 3335334, 5003001, 6670668, 10006002, 20012004]

約数ペア:

[(1, 20012004), (2, 10006002), (3, 6670668), (4, 5003001), (6, 3335334), (9, 2223556), (12, 1667667), (18, 1111778), (36, 555889), (587, 34092), (947, 21132), (1174, 17046), (1761, 11364), (1894, 10566), (2348, 8523), (2841, 7044), (3522, 5682), (3788, 5283)]