1538180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{10987}}^1$

素因数の和:11003

約数の個数: 24

約数和(自身を含む): 3691968

約数和(自身を除く): 2153788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 10987, 21974, 43948, 54935, 76909, 109870, 153818, 219740, 307636, 384545, 769090, 1538180]

約数ペア:

[(1, 1538180), (2, 769090), (4, 384545), (5, 307636), (7, 219740), (10, 153818), (14, 109870), (20, 76909), (28, 54935), (35, 43948), (70, 21974), (140, 10987)]