77720080

素因数分解:

$2^4\times 5^1\times {\mathrm{971501}}^1$

素因数の和:971514

約数の個数: 20

約数和(自身を含む): 180699372

約数和(自身を除く): 102979292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971501, 1943002, 3886004, 4857505, 7772008, 9715010, 15544016, 19430020, 38860040, 77720080]

約数ペア:

[(1, 77720080), (2, 38860040), (4, 19430020), (5, 15544016), (8, 9715010), (10, 7772008), (16, 4857505), (20, 3886004), (40, 1943002), (80, 971501)]