204518680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{52711}}^1$

素因数の和:52819

約数の個数: 32

約数和(自身を含む): 464919840

約数和(自身を除く): 260401160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 52711, 105422, 210844, 263555, 421688, 527110, 1054220, 2108440, 5112967, 10225934, 20451868, 25564835, 40903736, 51129670, 102259340, 204518680]

約数ペア:

[(1, 204518680), (2, 102259340), (4, 51129670), (5, 40903736), (8, 25564835), (10, 20451868), (20, 10225934), (40, 5112967), (97, 2108440), (194, 1054220), (388, 527110), (485, 421688), (776, 263555), (970, 210844), (1940, 105422), (3880, 52711)]