8921680

素因数分解:

$2^4\times 5^1\times {\mathrm{111521}}^1$

素因数の和:111534

約数の個数: 20

約数和(自身を含む): 20743092

約数和(自身を除く): 11821412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111521, 223042, 446084, 557605, 892168, 1115210, 1784336, 2230420, 4460840, 8921680]

約数ペア:

[(1, 8921680), (2, 4460840), (4, 2230420), (5, 1784336), (8, 1115210), (10, 892168), (16, 557605), (20, 446084), (40, 223042), (80, 111521)]