81517920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15439}}^1$

素因数の和:15468

約数の個数: 96

約数和(自身を含む): 280143360

約数和(自身を除く): 198625440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 5280, 15439, 30878, 46317, 61756, 77195, 92634, 123512, 154390, 169829, 185268, 231585, 247024, 308780, 339658, 370536, 463170, 494048, 509487, 617560, 679316, 741072, 849145, 926340, 1018974, 1235120, 1358632, 1482144, 1698290, 1852680, 2037948, 2470240, 2547435, 2717264, 3396580, 3705360, 4075896, 5094870, 5434528, 6793160, 7410720, 8151792, 10189740, 13586320, 16303584, 20379480, 27172640, 40758960, 81517920]

約数ペア:

[(1, 81517920), (2, 40758960), (3, 27172640), (4, 20379480), (5, 16303584), (6, 13586320), (8, 10189740), (10, 8151792), (11, 7410720), (12, 6793160), (15, 5434528), (16, 5094870), (20, 4075896), (22, 3705360), (24, 3396580), (30, 2717264), (32, 2547435), (33, 2470240), (40, 2037948), (44, 1852680), (48, 1698290), (55, 1482144), (60, 1358632), (66, 1235120), (80, 1018974), (88, 926340), (96, 849145), (110, 741072), (120, 679316), (132, 617560), (160, 509487), (165, 494048), (176, 463170), (220, 370536), (240, 339658), (264, 308780), (330, 247024), (352, 231585), (440, 185268), (480, 169829), (528, 154390), (660, 123512), (880, 92634), (1056, 77195), (1320, 61756), (1760, 46317), (2640, 30878), (5280, 15439)]