20456600

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3527}}^1$

素因数の和:3572

約数の個数: 48

約数和(自身を含む): 49215600

約数和(自身を除く): 28759000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3527, 5800, 7054, 14108, 17635, 28216, 35270, 70540, 88175, 102283, 141080, 176350, 204566, 352700, 409132, 511415, 705400, 818264, 1022830, 2045660, 2557075, 4091320, 5114150, 10228300, 20456600]

約数ペア:

[(1, 20456600), (2, 10228300), (4, 5114150), (5, 4091320), (8, 2557075), (10, 2045660), (20, 1022830), (25, 818264), (29, 705400), (40, 511415), (50, 409132), (58, 352700), (100, 204566), (116, 176350), (145, 141080), (200, 102283), (232, 88175), (290, 70540), (580, 35270), (725, 28216), (1160, 17635), (1450, 14108), (2900, 7054), (3527, 5800)]