81745455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 148635648

約数和(自身を除く): 66890193

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 83, 127, 141, 165, 235, 249, 381, 415, 517, 635, 705, 913, 1245, 1397, 1551, 1905, 2585, 2739, 3901, 4191, 4565, 5969, 6985, 7755, 10541, 11703, 13695, 17907, 19505, 20955, 29845, 31623, 42911, 52705, 58515, 65659, 89535, 115951, 128733, 158115, 196977, 214555, 328295, 347853, 495427, 579755, 643665, 984885, 1486281, 1739265, 2477135, 5449697, 7431405, 16349091, 27248485, 81745455]

約数ペア:

[(1, 81745455), (3, 27248485), (5, 16349091), (11, 7431405), (15, 5449697), (33, 2477135), (47, 1739265), (55, 1486281), (83, 984885), (127, 643665), (141, 579755), (165, 495427), (235, 347853), (249, 328295), (381, 214555), (415, 196977), (517, 158115), (635, 128733), (705, 115951), (913, 89535), (1245, 65659), (1397, 58515), (1551, 52705), (1905, 42911), (2585, 31623), (2739, 29845), (3901, 20955), (4191, 19505), (4565, 17907), (5969, 13695), (6985, 11703), (7755, 10541)]