209968115

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 298598400

約数和(自身を除く): 88630285

約数列:

[1, 5, 7, 31, 35, 155, 217, 431, 449, 1085, 2155, 2245, 3017, 3143, 13361, 13919, 15085, 15715, 66805, 69595, 93527, 97433, 193519, 467635, 487165, 967595, 1354633, 5999089, 6773165, 29995445, 41993623, 209968115]

約数ペア:

[(1, 209968115), (5, 41993623), (7, 29995445), (31, 6773165), (35, 5999089), (155, 1354633), (217, 967595), (431, 487165), (449, 467635), (1085, 193519), (2155, 97433), (2245, 93527), (3017, 69595), (3143, 66805), (13361, 15715), (13919, 15085)]