217120220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{571369}}^1$

素因数の和:571397

約数の個数: 24

約数和(自身を含む): 479950800

約数和(自身を除く): 262830580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 571369, 1142738, 2285476, 2856845, 5713690, 10856011, 11427380, 21712022, 43424044, 54280055, 108560110, 217120220]

約数ペア:

[(1, 217120220), (2, 108560110), (4, 54280055), (5, 43424044), (10, 21712022), (19, 11427380), (20, 10856011), (38, 5713690), (76, 2856845), (95, 2285476), (190, 1142738), (380, 571369)]