138760400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{8461}}^1$

素因数の和:8520

約数の個数: 60

約数和(自身を含む): 341543244

約数和(自身を除く): 202782844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 2050, 3280, 4100, 8200, 8461, 16400, 16922, 33844, 42305, 67688, 84610, 135376, 169220, 211525, 338440, 346901, 423050, 676880, 693802, 846100, 1387604, 1692200, 1734505, 2775208, 3384400, 3469010, 5550416, 6938020, 8672525, 13876040, 17345050, 27752080, 34690100, 69380200, 138760400]

約数ペア:

[(1, 138760400), (2, 69380200), (4, 34690100), (5, 27752080), (8, 17345050), (10, 13876040), (16, 8672525), (20, 6938020), (25, 5550416), (40, 3469010), (41, 3384400), (50, 2775208), (80, 1734505), (82, 1692200), (100, 1387604), (164, 846100), (200, 693802), (205, 676880), (328, 423050), (400, 346901), (410, 338440), (656, 211525), (820, 169220), (1025, 135376), (1640, 84610), (2050, 67688), (3280, 42305), (4100, 33844), (8200, 16922), (8461, 16400)]