280712905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 391226112

約数和(自身を除く): 110513207

約数列:

[1, 5, 11, 31, 47, 55, 113, 155, 235, 341, 517, 565, 961, 1243, 1457, 1705, 2585, 3503, 4805, 5311, 6215, 7285, 10571, 16027, 17515, 26555, 38533, 45167, 52855, 58421, 80135, 108593, 164641, 192665, 225835, 292105, 496837, 542965, 823205, 1194523, 1811051, 2484185, 5103871, 5972615, 9055255, 25519355, 56142581, 280712905]

約数ペア:

[(1, 280712905), (5, 56142581), (11, 25519355), (31, 9055255), (47, 5972615), (55, 5103871), (113, 2484185), (155, 1811051), (235, 1194523), (341, 823205), (517, 542965), (565, 496837), (961, 292105), (1243, 225835), (1457, 192665), (1705, 164641), (2585, 108593), (3503, 80135), (4805, 58421), (5311, 52855), (6215, 45167), (7285, 38533), (10571, 26555), (16027, 17515)]