214920305

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 283046400

約数和(自身を除く): 68126095

約数列:

[1, 5, 19, 29, 95, 145, 181, 431, 551, 905, 2155, 2755, 3439, 5249, 8189, 12499, 17195, 26245, 40945, 62495, 78011, 99731, 237481, 390055, 498655, 1187405, 1482209, 2262319, 7411045, 11311595, 42984061, 214920305]

約数ペア:

[(1, 214920305), (5, 42984061), (19, 11311595), (29, 7411045), (95, 2262319), (145, 1482209), (181, 1187405), (431, 498655), (551, 390055), (905, 237481), (2155, 99731), (2755, 78011), (3439, 62495), (5249, 40945), (8189, 26245), (12499, 17195)]