40399330

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{7937}}^1$

素因数の和:8453

約数の個数: 16

約数和(自身を含む): 72870840

約数和(自身を除く): 32471510

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 7937, 15874, 39685, 79370, 4039933, 8079866, 20199665, 40399330]

約数ペア:

[(1, 40399330), (2, 20199665), (5, 8079866), (10, 4039933), (509, 79370), (1018, 39685), (2545, 15874), (5090, 7937)]