9009680

素因数分解:

$2^4\times 5^1\times {\mathrm{112621}}^1$

素因数の和:112634

約数の個数: 20

約数和(自身を含む): 20947692

約数和(自身を除く): 11938012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 112621, 225242, 450484, 563105, 900968, 1126210, 1801936, 2252420, 4504840, 9009680]

約数ペア:

[(1, 9009680), (2, 4504840), (4, 2252420), (5, 1801936), (8, 1126210), (10, 900968), (16, 563105), (20, 450484), (40, 225242), (80, 112621)]