20806094420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1\times {\mathrm{44357}}^1$

素因数の和:44912

約数の個数: 48

約数和(自身を含む): 44712864000

約数和(自身を除く): 23906769580

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 499, 940, 998, 1996, 2495, 4990, 9980, 23453, 44357, 46906, 88714, 93812, 117265, 177428, 221785, 234530, 443570, 469060, 887140, 2084779, 4169558, 8339116, 10423895, 20847790, 22134143, 41695580, 44268286, 88536572, 110670715, 221341430, 442682860, 1040304721, 2080609442, 4161218884, 5201523605, 10403047210, 20806094420]

約数ペア:

[(1, 20806094420), (2, 10403047210), (4, 5201523605), (5, 4161218884), (10, 2080609442), (20, 1040304721), (47, 442682860), (94, 221341430), (188, 110670715), (235, 88536572), (470, 44268286), (499, 41695580), (940, 22134143), (998, 20847790), (1996, 10423895), (2495, 8339116), (4990, 4169558), (9980, 2084779), (23453, 887140), (44357, 469060), (46906, 443570), (88714, 234530), (93812, 221785), (117265, 177428)]