254205465

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{20743}}^1$

素因数の和:20813

約数の個数: 32

約数和(自身を含む): 438113280

約数和(自身を除く): 183907815

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 645, 817, 2451, 4085, 12255, 20743, 62229, 103715, 311145, 394117, 891949, 1182351, 1970585, 2675847, 4459745, 5911755, 13379235, 16947031, 50841093, 84735155, 254205465]

約数ペア:

[(1, 254205465), (3, 84735155), (5, 50841093), (15, 16947031), (19, 13379235), (43, 5911755), (57, 4459745), (95, 2675847), (129, 1970585), (215, 1182351), (285, 891949), (645, 394117), (817, 311145), (2451, 103715), (4085, 62229), (12255, 20743)]