256302620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1830733}}^1$

素因数の和:1830749

約数の個数: 24

約数和(自身を含む): 615126624

約数和(自身を除く): 358824004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1830733, 3661466, 7322932, 9153665, 12815131, 18307330, 25630262, 36614660, 51260524, 64075655, 128151310, 256302620]

約数ペア:

[(1, 256302620), (2, 128151310), (4, 64075655), (5, 51260524), (7, 36614660), (10, 25630262), (14, 18307330), (20, 12815131), (28, 9153665), (35, 7322932), (70, 3661466), (140, 1830733)]