205510900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{41941}}^1$

素因数の和:41969

約数の個数: 54

約数和(自身を含む): 518780598

約数和(自身を除く): 313269698

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 41941, 83882, 167764, 209705, 293587, 419410, 587174, 838820, 1048525, 1174348, 1467935, 2055109, 2097050, 2935870, 4110218, 4194100, 5871740, 7339675, 8220436, 10275545, 14679350, 20551090, 29358700, 41102180, 51377725, 102755450, 205510900]

約数ペア:

[(1, 205510900), (2, 102755450), (4, 51377725), (5, 41102180), (7, 29358700), (10, 20551090), (14, 14679350), (20, 10275545), (25, 8220436), (28, 7339675), (35, 5871740), (49, 4194100), (50, 4110218), (70, 2935870), (98, 2097050), (100, 2055109), (140, 1467935), (175, 1174348), (196, 1048525), (245, 838820), (350, 587174), (490, 419410), (700, 293587), (980, 209705), (1225, 167764), (2450, 83882), (4900, 41941)]