19922960

素因数分解:

$2^4\times 5^1\times {\mathrm{249037}}^1$

素因数の和:249050

約数の個数: 20

約数和(自身を含む): 46321068

約数和(自身を除く): 26398108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 249037, 498074, 996148, 1245185, 1992296, 2490370, 3984592, 4980740, 9961480, 19922960]

約数ペア:

[(1, 19922960), (2, 9961480), (4, 4980740), (5, 3984592), (8, 2490370), (10, 1992296), (16, 1245185), (20, 996148), (40, 498074), (80, 249037)]