126876760

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{4933}}^1$

素因数の和:5587

約数の個数: 32

約数和(自身を含む): 285974640

約数和(自身を除く): 159097880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 4933, 5144, 6430, 9866, 12860, 19732, 24665, 25720, 39464, 49330, 98660, 197320, 3171919, 6343838, 12687676, 15859595, 25375352, 31719190, 63438380, 126876760]

約数ペア:

[(1, 126876760), (2, 63438380), (4, 31719190), (5, 25375352), (8, 15859595), (10, 12687676), (20, 6343838), (40, 3171919), (643, 197320), (1286, 98660), (2572, 49330), (3215, 39464), (4933, 25720), (5144, 24665), (6430, 19732), (9866, 12860)]