19408580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23669}}^1$

素因数の和:23719

約数の個数: 24

約数和(自身を含む): 41753880

約数和(自身を除く): 22345300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23669, 47338, 94676, 118345, 236690, 473380, 970429, 1940858, 3881716, 4852145, 9704290, 19408580]

約数ペア:

[(1, 19408580), (2, 9704290), (4, 4852145), (5, 3881716), (10, 1940858), (20, 970429), (41, 473380), (82, 236690), (164, 118345), (205, 94676), (410, 47338), (820, 23669)]