278344780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1988177}}^1$

素因数の和:1988193

約数の個数: 24

約数和(自身を含む): 668027808

約数和(自身を除く): 389683028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1988177, 3976354, 7952708, 9940885, 13917239, 19881770, 27834478, 39763540, 55668956, 69586195, 139172390, 278344780]

約数ペア:

[(1, 278344780), (2, 139172390), (4, 69586195), (5, 55668956), (7, 39763540), (10, 27834478), (14, 19881770), (20, 13917239), (28, 9940885), (35, 7952708), (70, 3976354), (140, 1988177)]