28281400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{20201}}^1$

素因数の和:20224

約数の個数: 48

約数和(自身を含む): 75151440

約数和(自身を除く): 46870040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 20201, 40402, 80804, 101005, 141407, 161608, 202010, 282814, 404020, 505025, 565628, 707035, 808040, 1010050, 1131256, 1414070, 2020100, 2828140, 3535175, 4040200, 5656280, 7070350, 14140700, 28281400]

約数ペア:

[(1, 28281400), (2, 14140700), (4, 7070350), (5, 5656280), (7, 4040200), (8, 3535175), (10, 2828140), (14, 2020100), (20, 1414070), (25, 1131256), (28, 1010050), (35, 808040), (40, 707035), (50, 565628), (56, 505025), (70, 404020), (100, 282814), (140, 202010), (175, 161608), (200, 141407), (280, 101005), (350, 80804), (700, 40402), (1400, 20201)]