261297288

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{518447}}^1$

素因数の和:518466

約数の個数: 48

約数和(自身を含む): 808778880

約数和(自身を除く): 547481592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 518447, 1036894, 1555341, 2073788, 3110682, 3629129, 4147576, 4666023, 6221364, 7258258, 9332046, 10887387, 12442728, 14516516, 18664092, 21774774, 29033032, 32662161, 37328184, 43549548, 65324322, 87099096, 130648644, 261297288]

約数ペア:

[(1, 261297288), (2, 130648644), (3, 87099096), (4, 65324322), (6, 43549548), (7, 37328184), (8, 32662161), (9, 29033032), (12, 21774774), (14, 18664092), (18, 14516516), (21, 12442728), (24, 10887387), (28, 9332046), (36, 7258258), (42, 6221364), (56, 4666023), (63, 4147576), (72, 3629129), (84, 3110682), (126, 2073788), (168, 1555341), (252, 1036894), (504, 518447)]