20164080400

素因数分解:

$2^4\times 5^2\times {\mathrm{4133}}^1\times {\mathrm{12197}}^1$

素因数の和:16348

約数の個数: 60

約数和(自身を含む): 48459897252

約数和(自身を除く): 28295816852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4133, 8266, 12197, 16532, 20665, 24394, 33064, 41330, 48788, 60985, 66128, 82660, 97576, 103325, 121970, 165320, 195152, 206650, 243940, 304925, 330640, 413300, 487880, 609850, 826600, 975760, 1219700, 1653200, 2439400, 4878800, 50410201, 100820402, 201640804, 252051005, 403281608, 504102010, 806563216, 1008204020, 1260255025, 2016408040, 2520510050, 4032816080, 5041020100, 10082040200, 20164080400]

約数ペア:

[(1, 20164080400), (2, 10082040200), (4, 5041020100), (5, 4032816080), (8, 2520510050), (10, 2016408040), (16, 1260255025), (20, 1008204020), (25, 806563216), (40, 504102010), (50, 403281608), (80, 252051005), (100, 201640804), (200, 100820402), (400, 50410201), (4133, 4878800), (8266, 2439400), (12197, 1653200), (16532, 1219700), (20665, 975760), (24394, 826600), (33064, 609850), (41330, 487880), (48788, 413300), (60985, 330640), (66128, 304925), (82660, 243940), (97576, 206650), (103325, 195152), (121970, 165320)]