87786620

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{9013}}^1$

素因数の和:9509

約数の個数: 24

約数和(自身を含む): 184750944

約数和(自身を除く): 96964324

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9013, 9740, 18026, 36052, 45065, 90130, 180260, 4389331, 8778662, 17557324, 21946655, 43893310, 87786620]

約数ペア:

[(1, 87786620), (2, 43893310), (4, 21946655), (5, 17557324), (10, 8778662), (20, 4389331), (487, 180260), (974, 90130), (1948, 45065), (2435, 36052), (4870, 18026), (9013, 9740)]