18182680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11087}}^1$

素因数の和:11139

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 23729960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11087, 22174, 44348, 55435, 88696, 110870, 221740, 443480, 454567, 909134, 1818268, 2272835, 3636536, 4545670, 9091340, 18182680]

約数ペア:

[(1, 18182680), (2, 9091340), (4, 4545670), (5, 3636536), (8, 2272835), (10, 1818268), (20, 909134), (40, 454567), (41, 443480), (82, 221740), (164, 110870), (205, 88696), (328, 55435), (410, 44348), (820, 22174), (1640, 11087)]