2109040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 5030928

約数和(自身を除く): 2921888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 643, 656, 820, 1286, 1640, 2572, 3215, 3280, 5144, 6430, 10288, 12860, 25720, 26363, 51440, 52726, 105452, 131815, 210904, 263630, 421808, 527260, 1054520, 2109040]

約数ペア:

[(1, 2109040), (2, 1054520), (4, 527260), (5, 421808), (8, 263630), (10, 210904), (16, 131815), (20, 105452), (40, 52726), (41, 51440), (80, 26363), (82, 25720), (164, 12860), (205, 10288), (328, 6430), (410, 5144), (643, 3280), (656, 3215), (820, 2572), (1286, 1640)]