78840260

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{6389}}^1$

素因数の和:7015

約数の個数: 24

約数和(自身を含む): 165858840

約数和(自身を除く): 87018580

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 2468, 3085, 6170, 6389, 12340, 12778, 25556, 31945, 63890, 127780, 3942013, 7884026, 15768052, 19710065, 39420130, 78840260]

約数ペア:

[(1, 78840260), (2, 39420130), (4, 19710065), (5, 15768052), (10, 7884026), (20, 3942013), (617, 127780), (1234, 63890), (2468, 31945), (3085, 25556), (6170, 12778), (6389, 12340)]