216175655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 280941696

約数和(自身を除く): 64766041

約数列:

[1, 5, 17, 85, 97, 157, 167, 485, 785, 835, 1649, 2669, 2839, 8245, 13345, 14195, 15229, 16199, 26219, 76145, 80995, 131095, 258893, 275383, 445723, 1294465, 1376915, 2228615, 2543243, 12716215, 43235131, 216175655]

約数ペア:

[(1, 216175655), (5, 43235131), (17, 12716215), (85, 2543243), (97, 2228615), (157, 1376915), (167, 1294465), (485, 445723), (785, 275383), (835, 258893), (1649, 131095), (2669, 80995), (2839, 76145), (8245, 26219), (13345, 16199), (14195, 15229)]