16811240

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{863}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 37946880

約数和(自身を除く): 21135640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 863, 974, 1726, 1948, 2435, 3452, 3896, 4315, 4870, 6904, 8630, 9740, 17260, 19480, 34520, 420281, 840562, 1681124, 2101405, 3362248, 4202810, 8405620, 16811240]

約数ペア:

[(1, 16811240), (2, 8405620), (4, 4202810), (5, 3362248), (8, 2101405), (10, 1681124), (20, 840562), (40, 420281), (487, 34520), (863, 19480), (974, 17260), (1726, 9740), (1948, 8630), (2435, 6904), (3452, 4870), (3896, 4315)]