201220280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{49807}}^1$

素因数の和:49919

約数の個数: 32

約数和(自身を含む): 457237440

約数和(自身を除く): 256017160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 49807, 99614, 199228, 249035, 398456, 498070, 996140, 1992280, 5030507, 10061014, 20122028, 25152535, 40244056, 50305070, 100610140, 201220280]

約数ペア:

[(1, 201220280), (2, 100610140), (4, 50305070), (5, 40244056), (8, 25152535), (10, 20122028), (20, 10061014), (40, 5030507), (101, 1992280), (202, 996140), (404, 498070), (505, 398456), (808, 249035), (1010, 199228), (2020, 99614), (4040, 49807)]