65267120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18973}}^1$

素因数の和:19029

約数の個数: 40

約数和(自身を含む): 155283216

約数和(自身を除く): 90016096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 18973, 37946, 75892, 94865, 151784, 189730, 303568, 379460, 758920, 815839, 1517840, 1631678, 3263356, 4079195, 6526712, 8158390, 13053424, 16316780, 32633560, 65267120]

約数ペア:

[(1, 65267120), (2, 32633560), (4, 16316780), (5, 13053424), (8, 8158390), (10, 6526712), (16, 4079195), (20, 3263356), (40, 1631678), (43, 1517840), (80, 815839), (86, 758920), (172, 379460), (215, 303568), (344, 189730), (430, 151784), (688, 94865), (860, 75892), (1720, 37946), (3440, 18973)]