156045580

素因数分解:

$2^2\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{3907}}^1$

素因数の和:5913

約数の個数: 24

約数和(自身を含む): 327943728

約数和(自身を除く): 171898148

約数列:

[1, 2, 4, 5, 10, 20, 1997, 3907, 3994, 7814, 7988, 9985, 15628, 19535, 19970, 39070, 39940, 78140, 7802279, 15604558, 31209116, 39011395, 78022790, 156045580]

約数ペア:

[(1, 156045580), (2, 78022790), (4, 39011395), (5, 31209116), (10, 15604558), (20, 7802279), (1997, 78140), (3907, 39940), (3994, 39070), (7814, 19970), (7988, 19535), (9985, 15628)]