2920540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 7322112

約数和(自身を除く): 4401572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 907, 1610, 1814, 3220, 3628, 4535, 6349, 9070, 12698, 18140, 20861, 25396, 31745, 41722, 63490, 83444, 104305, 126980, 146027, 208610, 292054, 417220, 584108, 730135, 1460270, 2920540]

約数ペア:

[(1, 2920540), (2, 1460270), (4, 730135), (5, 584108), (7, 417220), (10, 292054), (14, 208610), (20, 146027), (23, 126980), (28, 104305), (35, 83444), (46, 63490), (70, 41722), (92, 31745), (115, 25396), (140, 20861), (161, 18140), (230, 12698), (322, 9070), (460, 6349), (644, 4535), (805, 3628), (907, 3220), (1610, 1814)]