27818980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1823}}^1$

素因数の和:1948

約数の個数: 48

約数和(自身を含む): 67415040

約数和(自身を除く): 39596060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1823, 2180, 3052, 3646, 3815, 7292, 7630, 9115, 12761, 15260, 18230, 25522, 36460, 51044, 63805, 127610, 198707, 255220, 397414, 794828, 993535, 1390949, 1987070, 2781898, 3974140, 5563796, 6954745, 13909490, 27818980]

約数ペア:

[(1, 27818980), (2, 13909490), (4, 6954745), (5, 5563796), (7, 3974140), (10, 2781898), (14, 1987070), (20, 1390949), (28, 993535), (35, 794828), (70, 397414), (109, 255220), (140, 198707), (218, 127610), (436, 63805), (545, 51044), (763, 36460), (1090, 25522), (1526, 18230), (1823, 15260), (2180, 12761), (3052, 9115), (3646, 7630), (3815, 7292)]