201018020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{1997}}^1$

素因数の和:2732

約数の個数: 48

約数和(自身を含む): 483356160

約数和(自身を除く): 282338140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 719, 1438, 1997, 2876, 3595, 3994, 5033, 7190, 7988, 9985, 10066, 13979, 14380, 19970, 20132, 25165, 27958, 39940, 50330, 55916, 69895, 100660, 139790, 279580, 1435843, 2871686, 5743372, 7179215, 10050901, 14358430, 20101802, 28716860, 40203604, 50254505, 100509010, 201018020]

約数ペア:

[(1, 201018020), (2, 100509010), (4, 50254505), (5, 40203604), (7, 28716860), (10, 20101802), (14, 14358430), (20, 10050901), (28, 7179215), (35, 5743372), (70, 2871686), (140, 1435843), (719, 279580), (1438, 139790), (1997, 100660), (2876, 69895), (3595, 55916), (3994, 50330), (5033, 39940), (7190, 27958), (7988, 25165), (9985, 20132), (10066, 19970), (13979, 14380)]