127758520

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{3701}}^1$

素因数の和:4575

約数の個数: 32

約数和(自身を含む): 287867520

約数和(自身を除く): 160109000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 3452, 3701, 4315, 6904, 7402, 8630, 14804, 17260, 18505, 29608, 34520, 37010, 74020, 148040, 3193963, 6387926, 12775852, 15969815, 25551704, 31939630, 63879260, 127758520]

約数ペア:

[(1, 127758520), (2, 63879260), (4, 31939630), (5, 25551704), (8, 15969815), (10, 12775852), (20, 6387926), (40, 3193963), (863, 148040), (1726, 74020), (3452, 37010), (3701, 34520), (4315, 29608), (6904, 18505), (7402, 17260), (8630, 14804)]