61490480

素因数分解:

$2^4\times 5^1\times {\mathrm{768631}}^1$

素因数の和:768644

約数の個数: 20

約数和(自身を含む): 142965552

約数和(自身を除く): 81475072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 768631, 1537262, 3074524, 3843155, 6149048, 7686310, 12298096, 15372620, 30745240, 61490480]

約数ペア:

[(1, 61490480), (2, 30745240), (4, 15372620), (5, 12298096), (8, 7686310), (10, 6149048), (16, 3843155), (20, 3074524), (40, 1537262), (80, 768631)]