18404420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11087}}^1$

素因数の和:11179

約数の個数: 24

約数和(自身を含む): 39118464

約数和(自身を除く): 20714044

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11087, 22174, 44348, 55435, 110870, 221740, 920221, 1840442, 3680884, 4601105, 9202210, 18404420]

約数ペア:

[(1, 18404420), (2, 9202210), (4, 4601105), (5, 3680884), (10, 1840442), (20, 920221), (83, 221740), (166, 110870), (332, 55435), (415, 44348), (830, 22174), (1660, 11087)]