218413900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{11087}}^1$

素因数の和:11298

約数の個数: 36

約数和(自身を含む): 476407008

約数和(自身を除く): 257993108

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1970, 3940, 4925, 9850, 11087, 19700, 22174, 44348, 55435, 110870, 221740, 277175, 554350, 1108700, 2184139, 4368278, 8736556, 10920695, 21841390, 43682780, 54603475, 109206950, 218413900]

約数ペア:

[(1, 218413900), (2, 109206950), (4, 54603475), (5, 43682780), (10, 21841390), (20, 10920695), (25, 8736556), (50, 4368278), (100, 2184139), (197, 1108700), (394, 554350), (788, 277175), (985, 221740), (1970, 110870), (3940, 55435), (4925, 44348), (9850, 22174), (11087, 19700)]