18050228

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 40027680

約数和(自身を除く): 21977452

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 49, 74, 76, 98, 131, 133, 148, 196, 259, 262, 266, 518, 524, 532, 703, 917, 931, 1036, 1406, 1813, 1834, 1862, 2489, 2812, 3626, 3668, 3724, 4847, 4921, 4978, 6419, 7252, 9694, 9842, 9956, 12838, 17423, 19388, 19684, 25676, 33929, 34447, 34846, 67858, 68894, 69692, 92093, 121961, 135716, 137788, 184186, 237503, 243922, 368372, 475006, 487844, 644651, 950012, 1289302, 2578604, 4512557, 9025114, 18050228]

約数ペア:

[(1, 18050228), (2, 9025114), (4, 4512557), (7, 2578604), (14, 1289302), (19, 950012), (28, 644651), (37, 487844), (38, 475006), (49, 368372), (74, 243922), (76, 237503), (98, 184186), (131, 137788), (133, 135716), (148, 121961), (196, 92093), (259, 69692), (262, 68894), (266, 67858), (518, 34846), (524, 34447), (532, 33929), (703, 25676), (917, 19684), (931, 19388), (1036, 17423), (1406, 12838), (1813, 9956), (1834, 9842), (1862, 9694), (2489, 7252), (2812, 6419), (3626, 4978), (3668, 4921), (3724, 4847)]