19980260

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2879}}^1$

素因数の和:3235

約数の個数: 24

約数和(自身を含む): 42094080

約数和(自身を除く): 22113820

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2879, 3470, 5758, 6940, 11516, 14395, 28790, 57580, 999013, 1998026, 3996052, 4995065, 9990130, 19980260]

約数ペア:

[(1, 19980260), (2, 9990130), (4, 4995065), (5, 3996052), (10, 1998026), (20, 999013), (347, 57580), (694, 28790), (1388, 14395), (1735, 11516), (2879, 6940), (3470, 5758)]