139758920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499139}}^1$

素因数の和:499157

約数の個数: 32

約数和(自身を含む): 359380800

約数和(自身を除く): 219621880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499139, 998278, 1996556, 2495695, 3493973, 3993112, 4991390, 6987946, 9982780, 13975892, 17469865, 19965560, 27951784, 34939730, 69879460, 139758920]

約数ペア:

[(1, 139758920), (2, 69879460), (4, 34939730), (5, 27951784), (7, 19965560), (8, 17469865), (10, 13975892), (14, 9982780), (20, 6987946), (28, 4991390), (35, 3993112), (40, 3493973), (56, 2495695), (70, 1996556), (140, 998278), (280, 499139)]