202121200

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{5003}}^1$

素因数の和:5122

約数の個数: 60

約数和(自身を含む): 490502088

約数和(自身を除く): 288380888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 2020, 2525, 4040, 5003, 5050, 8080, 10006, 10100, 20012, 20200, 25015, 40024, 40400, 50030, 80048, 100060, 125075, 200120, 250150, 400240, 500300, 505303, 1000600, 1010606, 2001200, 2021212, 2526515, 4042424, 5053030, 8084848, 10106060, 12632575, 20212120, 25265150, 40424240, 50530300, 101060600, 202121200]

約数ペア:

[(1, 202121200), (2, 101060600), (4, 50530300), (5, 40424240), (8, 25265150), (10, 20212120), (16, 12632575), (20, 10106060), (25, 8084848), (40, 5053030), (50, 4042424), (80, 2526515), (100, 2021212), (101, 2001200), (200, 1010606), (202, 1000600), (400, 505303), (404, 500300), (505, 400240), (808, 250150), (1010, 200120), (1616, 125075), (2020, 100060), (2525, 80048), (4040, 50030), (5003, 40400), (5050, 40024), (8080, 25015), (10006, 20200), (10100, 20012)]