1238140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 2685312

約数和(自身を除く): 1447172

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1997, 3994, 7988, 9985, 19970, 39940, 61907, 123814, 247628, 309535, 619070, 1238140]

約数ペア:

[(1, 1238140), (2, 619070), (4, 309535), (5, 247628), (10, 123814), (20, 61907), (31, 39940), (62, 19970), (124, 9985), (155, 7988), (310, 3994), (620, 1997)]