209620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 451584

約数和(自身を除く): 241964

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 223, 235, 446, 470, 892, 940, 1115, 2230, 4460, 10481, 20962, 41924, 52405, 104810, 209620]

約数ペア:

[(1, 209620), (2, 104810), (4, 52405), (5, 41924), (10, 20962), (20, 10481), (47, 4460), (94, 2230), (188, 1115), (223, 940), (235, 892), (446, 470)]