205440255

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:421

約数の個数: 96

約数和(自身を含む): 404951040

約数和(自身を除く): 199510785

約数列:

[1, 3, 5, 9, 15, 19, 23, 31, 45, 57, 69, 93, 95, 115, 155, 171, 207, 279, 285, 337, 345, 437, 465, 589, 713, 855, 1011, 1035, 1311, 1395, 1685, 1767, 2139, 2185, 2945, 3033, 3565, 3933, 5055, 5301, 6403, 6417, 6555, 7751, 8835, 10447, 10695, 13547, 15165, 19209, 19665, 23253, 26505, 31341, 32015, 32085, 38755, 40641, 52235, 57627, 67735, 69759, 94023, 96045, 116265, 121923, 147269, 156705, 198493, 203205, 240281, 288135, 348795, 441807, 470115, 595479, 609615, 720843, 736345, 992465, 1201405, 1325421, 1786437, 2162529, 2209035, 2977395, 3604215, 4565339, 6627105, 8932185, 10812645, 13696017, 22826695, 41088051, 68480085, 205440255]

約数ペア:

[(1, 205440255), (3, 68480085), (5, 41088051), (9, 22826695), (15, 13696017), (19, 10812645), (23, 8932185), (31, 6627105), (45, 4565339), (57, 3604215), (69, 2977395), (93, 2209035), (95, 2162529), (115, 1786437), (155, 1325421), (171, 1201405), (207, 992465), (279, 736345), (285, 720843), (337, 609615), (345, 595479), (437, 470115), (465, 441807), (589, 348795), (713, 288135), (855, 240281), (1011, 203205), (1035, 198493), (1311, 156705), (1395, 147269), (1685, 121923), (1767, 116265), (2139, 96045), (2185, 94023), (2945, 69759), (3033, 67735), (3565, 57627), (3933, 52235), (5055, 40641), (5301, 38755), (6403, 32085), (6417, 32015), (6555, 31341), (7751, 26505), (8835, 23253), (10447, 19665), (10695, 19209), (13547, 15165)]