20184040

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2819}}^1$

素因数の和:3009

約数の個数: 32

約数和(自身を含む): 45684000

約数和(自身を除く): 25499960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2819, 3580, 5638, 7160, 11276, 14095, 22552, 28190, 56380, 112760, 504601, 1009202, 2018404, 2523005, 4036808, 5046010, 10092020, 20184040]

約数ペア:

[(1, 20184040), (2, 10092020), (4, 5046010), (5, 4036808), (8, 2523005), (10, 2018404), (20, 1009202), (40, 504601), (179, 112760), (358, 56380), (716, 28190), (895, 22552), (1432, 14095), (1790, 11276), (2819, 7160), (3580, 5638)]