20187046220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{890867}}^1$

素因数の和:890990

約数の個数: 48

約数和(自身を含む): 46695737088

約数和(自身を除く): 26508690868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 2060, 2266, 4532, 5665, 11330, 22660, 890867, 1781734, 3563468, 4454335, 8908670, 9799537, 17817340, 19599074, 39198148, 48997685, 91759301, 97995370, 183518602, 195990740, 367037204, 458796505, 917593010, 1009352311, 1835186020, 2018704622, 4037409244, 5046761555, 10093523110, 20187046220]

約数ペア:

[(1, 20187046220), (2, 10093523110), (4, 5046761555), (5, 4037409244), (10, 2018704622), (11, 1835186020), (20, 1009352311), (22, 917593010), (44, 458796505), (55, 367037204), (103, 195990740), (110, 183518602), (206, 97995370), (220, 91759301), (412, 48997685), (515, 39198148), (1030, 19599074), (1133, 17817340), (2060, 9799537), (2266, 8908670), (4532, 4454335), (5665, 3563468), (11330, 1781734), (22660, 890867)]