198384880

素因数分解:

$2^4\times 5^1\times {\mathrm{2479811}}^1$

素因数の和:2479824

約数の個数: 20

約数和(自身を含む): 461245032

約数和(自身を除く): 262860152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2479811, 4959622, 9919244, 12399055, 19838488, 24798110, 39676976, 49596220, 99192440, 198384880]

約数ペア:

[(1, 198384880), (2, 99192440), (4, 49596220), (5, 39676976), (8, 24798110), (10, 19838488), (16, 12399055), (20, 9919244), (40, 4959622), (80, 2479811)]