19261390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 16663730

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 431, 545, 862, 1090, 2155, 4310, 4469, 8938, 17671, 22345, 35342, 44690, 46979, 88355, 93958, 176710, 234895, 469790, 1926139, 3852278, 9630695, 19261390]

約数ペア:

[(1, 19261390), (2, 9630695), (5, 3852278), (10, 1926139), (41, 469790), (82, 234895), (109, 176710), (205, 93958), (218, 88355), (410, 46979), (431, 44690), (545, 35342), (862, 22345), (1090, 17671), (2155, 8938), (4310, 4469)]