20512221790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{186187}}^1$

素因数の和:186696

約数の個数: 32

約数和(自身を含む): 38607943680

約数和(自身を除く): 18095721890

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 479, 958, 2395, 4790, 11017, 22034, 55085, 110170, 186187, 372374, 930935, 1861870, 4282301, 8564602, 21411505, 42823010, 89183573, 178367146, 445917865, 891835730, 2051222179, 4102444358, 10256110895, 20512221790]

約数ペア:

[(1, 20512221790), (2, 10256110895), (5, 4102444358), (10, 2051222179), (23, 891835730), (46, 445917865), (115, 178367146), (230, 89183573), (479, 42823010), (958, 21411505), (2395, 8564602), (4790, 4282301), (11017, 1861870), (22034, 930935), (55085, 372374), (110170, 186187)]