20919680

素因数分解:

$2^7\times 5^1\times {\mathrm{32687}}^1$

素因数の和:32706

約数の個数: 32

約数和(自身を含む): 50012640

約数和(自身を除く): 29092960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32687, 65374, 130748, 163435, 261496, 326870, 522992, 653740, 1045984, 1307480, 2091968, 2614960, 4183936, 5229920, 10459840, 20919680]

約数ペア:

[(1, 20919680), (2, 10459840), (4, 5229920), (5, 4183936), (8, 2614960), (10, 2091968), (16, 1307480), (20, 1045984), (32, 653740), (40, 522992), (64, 326870), (80, 261496), (128, 163435), (160, 130748), (320, 65374), (640, 32687)]