89440180

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{4099}}^1$

素因数の和:5199

約数の個数: 24

約数和(自身を含む): 188042400

約数和(自身を除く): 98602220

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 4099, 4364, 5455, 8198, 10910, 16396, 20495, 21820, 40990, 81980, 4472009, 8944018, 17888036, 22360045, 44720090, 89440180]

約数ペア:

[(1, 89440180), (2, 44720090), (4, 22360045), (5, 17888036), (10, 8944018), (20, 4472009), (1091, 81980), (2182, 40990), (4099, 21820), (4364, 20495), (5455, 16396), (8198, 10910)]