18786220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11317}}^1$

素因数の和:11409

約数の個数: 24

約数和(自身を含む): 39929904

約数和(自身を除く): 21143684

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11317, 22634, 45268, 56585, 113170, 226340, 939311, 1878622, 3757244, 4696555, 9393110, 18786220]

約数ペア:

[(1, 18786220), (2, 9393110), (4, 4696555), (5, 3757244), (10, 1878622), (20, 939311), (83, 226340), (166, 113170), (332, 56585), (415, 45268), (830, 22634), (1660, 11317)]