55165720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8461}}^1$

素因数の和:8635

約数の個数: 32

約数和(自身を含む): 124899120

約数和(自身を除く): 69733400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 8461, 16922, 33844, 42305, 67688, 84610, 169220, 338440, 1379143, 2758286, 5516572, 6895715, 11033144, 13791430, 27582860, 55165720]

約数ペア:

[(1, 55165720), (2, 27582860), (4, 13791430), (5, 11033144), (8, 6895715), (10, 5516572), (20, 2758286), (40, 1379143), (163, 338440), (326, 169220), (652, 84610), (815, 67688), (1304, 42305), (1630, 33844), (3260, 16922), (6520, 8461)]