389617340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2782981}}^1$

素因数の和:2782997

約数の個数: 24

約数和(自身を含む): 935081952

約数和(自身を除く): 545464612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2782981, 5565962, 11131924, 13914905, 19480867, 27829810, 38961734, 55659620, 77923468, 97404335, 194808670, 389617340]

約数ペア:

[(1, 389617340), (2, 194808670), (4, 97404335), (5, 77923468), (7, 55659620), (10, 38961734), (14, 27829810), (20, 19480867), (28, 13914905), (35, 11131924), (70, 5565962), (140, 2782981)]