19656280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70201}}^1$

素因数の和:70219

約数の個数: 32

約数和(自身を含む): 50545440

約数和(自身を除く): 30889160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70201, 140402, 280804, 351005, 491407, 561608, 702010, 982814, 1404020, 1965628, 2457035, 2808040, 3931256, 4914070, 9828140, 19656280]

約数ペア:

[(1, 19656280), (2, 9828140), (4, 4914070), (5, 3931256), (7, 2808040), (8, 2457035), (10, 1965628), (14, 1404020), (20, 982814), (28, 702010), (35, 561608), (40, 491407), (56, 351005), (70, 280804), (140, 140402), (280, 70201)]