257131870

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{694951}}^1$

素因数の和:694995

約数の個数: 16

約数和(自身を含む): 475347168

約数和(自身を除く): 218215298

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 694951, 1389902, 3474755, 6949510, 25713187, 51426374, 128565935, 257131870]

約数ペア:

[(1, 257131870), (2, 128565935), (5, 51426374), (10, 25713187), (37, 6949510), (74, 3474755), (185, 1389902), (370, 694951)]