19872520

素因数分解:

$2^3\times 5^1\times {\mathrm{496813}}^1$

素因数の和:496824

約数の個数: 16

約数和(自身を含む): 44713260

約数和(自身を除く): 24840740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496813, 993626, 1987252, 2484065, 3974504, 4968130, 9936260, 19872520]

約数ペア:

[(1, 19872520), (2, 9936260), (4, 4968130), (5, 3974504), (8, 2484065), (10, 1987252), (20, 993626), (40, 496813)]