858175340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{19801}}^1$

素因数の和:20018

約数の個数: 48

約数和(自身を含む): 1976081184

約数和(自身を除く): 1117905844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4334, 8668, 10835, 19801, 21670, 39602, 43340, 79204, 99005, 198010, 217811, 396020, 435622, 871244, 1089055, 2178110, 3900797, 4356220, 7801594, 15603188, 19503985, 39007970, 42908767, 78015940, 85817534, 171635068, 214543835, 429087670, 858175340]

約数ペア:

[(1, 858175340), (2, 429087670), (4, 214543835), (5, 171635068), (10, 85817534), (11, 78015940), (20, 42908767), (22, 39007970), (44, 19503985), (55, 15603188), (110, 7801594), (197, 4356220), (220, 3900797), (394, 2178110), (788, 1089055), (985, 871244), (1970, 435622), (2167, 396020), (3940, 217811), (4334, 198010), (8668, 99005), (10835, 79204), (19801, 43340), (21670, 39602)]