199977680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{357103}}^1$

素因数の和:357123

約数の個数: 40

約数和(自身を含む): 531370752

約数和(自身を除く): 331393072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 357103, 714206, 1428412, 1785515, 2499721, 2856824, 3571030, 4999442, 5713648, 7142060, 9998884, 12498605, 14284120, 19997768, 24997210, 28568240, 39995536, 49994420, 99988840, 199977680]

約数ペア:

[(1, 199977680), (2, 99988840), (4, 49994420), (5, 39995536), (7, 28568240), (8, 24997210), (10, 19997768), (14, 14284120), (16, 12498605), (20, 9998884), (28, 7142060), (35, 5713648), (40, 4999442), (56, 3571030), (70, 2856824), (80, 2499721), (112, 1785515), (140, 1428412), (280, 714206), (560, 357103)]