19776280

素因数分解:

$2^3\times 5^1\times {\mathrm{494407}}^1$

素因数の和:494418

約数の個数: 16

約数和(自身を含む): 44496720

約数和(自身を除く): 24720440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 494407, 988814, 1977628, 2472035, 3955256, 4944070, 9888140, 19776280]

約数ペア:

[(1, 19776280), (2, 9888140), (4, 4944070), (5, 3955256), (8, 2472035), (10, 1977628), (20, 988814), (40, 494407)]