289830191

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 354816000

約数和(自身を除く): 64985809

約数列:

[1, 7, 31, 43, 89, 217, 301, 349, 623, 1333, 2443, 2759, 3827, 9331, 10819, 15007, 19313, 26789, 31061, 75733, 105049, 118637, 217427, 465217, 830459, 962891, 1335623, 3256519, 6740237, 9349361, 41404313, 289830191]

約数ペア:

[(1, 289830191), (7, 41404313), (31, 9349361), (43, 6740237), (89, 3256519), (217, 1335623), (301, 962891), (349, 830459), (623, 465217), (1333, 217427), (2443, 118637), (2759, 105049), (3827, 75733), (9331, 31061), (10819, 26789), (15007, 19313)]