90168640

素因数分解:

$2^6\times 5^1\times {\mathrm{281777}}^1$

素因数の和:281794

約数の個数: 28

約数和(自身を含む): 214714836

約数和(自身を除く): 124546196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 281777, 563554, 1127108, 1408885, 2254216, 2817770, 4508432, 5635540, 9016864, 11271080, 18033728, 22542160, 45084320, 90168640]

約数ペア:

[(1, 90168640), (2, 45084320), (4, 22542160), (5, 18033728), (8, 11271080), (10, 9016864), (16, 5635540), (20, 4508432), (32, 2817770), (40, 2254216), (64, 1408885), (80, 1127108), (160, 563554), (320, 281777)]