19901810

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48541}}^1$

素因数の和:48589

約数の個数: 16

約数和(自身を含む): 36697752

約数和(自身を除く): 16795942

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 48541, 97082, 242705, 485410, 1990181, 3980362, 9950905, 19901810]

約数ペア:

[(1, 19901810), (2, 9950905), (5, 3980362), (10, 1990181), (41, 485410), (82, 242705), (205, 97082), (410, 48541)]