208829180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{213091}}^1$

素因数の和:213114

約数の個数: 36

約数和(自身を含む): 510142248

約数和(自身を除く): 301313068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 213091, 426182, 852364, 1065455, 1491637, 2130910, 2983274, 4261820, 5966548, 7458185, 10441459, 14916370, 20882918, 29832740, 41765836, 52207295, 104414590, 208829180]

約数ペア:

[(1, 208829180), (2, 104414590), (4, 52207295), (5, 41765836), (7, 29832740), (10, 20882918), (14, 14916370), (20, 10441459), (28, 7458185), (35, 5966548), (49, 4261820), (70, 2983274), (98, 2130910), (140, 1491637), (196, 1065455), (245, 852364), (490, 426182), (980, 213091)]