261720080

素因数分解:

$2^4\times 5^1\times {\mathrm{3271501}}^1$

素因数の和:3271514

約数の個数: 20

約数和(自身を含む): 608499372

約数和(自身を除く): 346779292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3271501, 6543002, 13086004, 16357505, 26172008, 32715010, 52344016, 65430020, 130860040, 261720080]

約数ペア:

[(1, 261720080), (2, 130860040), (4, 65430020), (5, 52344016), (8, 32715010), (10, 26172008), (16, 16357505), (20, 13086004), (40, 6543002), (80, 3271501)]