201047980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205151}}^1$

素因数の和:205174

約数の個数: 36

約数和(自身を含む): 491133888

約数和(自身を除く): 290085908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205151, 410302, 820604, 1025755, 1436057, 2051510, 2872114, 4103020, 5744228, 7180285, 10052399, 14360570, 20104798, 28721140, 40209596, 50261995, 100523990, 201047980]

約数ペア:

[(1, 201047980), (2, 100523990), (4, 50261995), (5, 40209596), (7, 28721140), (10, 20104798), (14, 14360570), (20, 10052399), (28, 7180285), (35, 5744228), (49, 4103020), (70, 2872114), (98, 2051510), (140, 1436057), (196, 1025755), (245, 820604), (490, 410302), (980, 205151)]