81645900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2287}}^1$

素因数の和:2328

約数の個数: 144

約数和(自身を含む): 285981696

約数和(自身を除く): 204335796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 50, 51, 60, 68, 70, 75, 84, 85, 100, 102, 105, 119, 140, 150, 170, 175, 204, 210, 238, 255, 300, 340, 350, 357, 420, 425, 476, 510, 525, 595, 700, 714, 850, 1020, 1050, 1190, 1275, 1428, 1700, 1785, 2100, 2287, 2380, 2550, 2975, 3570, 4574, 5100, 5950, 6861, 7140, 8925, 9148, 11435, 11900, 13722, 16009, 17850, 22870, 27444, 32018, 34305, 35700, 38879, 45740, 48027, 57175, 64036, 68610, 77758, 80045, 96054, 114350, 116637, 137220, 155516, 160090, 171525, 192108, 194395, 228700, 233274, 240135, 272153, 320180, 343050, 388790, 400225, 466548, 480270, 544306, 583185, 686100, 777580, 800450, 816459, 960540, 971975, 1088612, 1166370, 1200675, 1360765, 1600900, 1632918, 1943950, 2332740, 2401350, 2721530, 2915925, 3265836, 3887900, 4082295, 4802700, 5443060, 5831850, 6803825, 8164590, 11663700, 13607650, 16329180, 20411475, 27215300, 40822950, 81645900]

約数ペア:

[(1, 81645900), (2, 40822950), (3, 27215300), (4, 20411475), (5, 16329180), (6, 13607650), (7, 11663700), (10, 8164590), (12, 6803825), (14, 5831850), (15, 5443060), (17, 4802700), (20, 4082295), (21, 3887900), (25, 3265836), (28, 2915925), (30, 2721530), (34, 2401350), (35, 2332740), (42, 1943950), (50, 1632918), (51, 1600900), (60, 1360765), (68, 1200675), (70, 1166370), (75, 1088612), (84, 971975), (85, 960540), (100, 816459), (102, 800450), (105, 777580), (119, 686100), (140, 583185), (150, 544306), (170, 480270), (175, 466548), (204, 400225), (210, 388790), (238, 343050), (255, 320180), (300, 272153), (340, 240135), (350, 233274), (357, 228700), (420, 194395), (425, 192108), (476, 171525), (510, 160090), (525, 155516), (595, 137220), (700, 116637), (714, 114350), (850, 96054), (1020, 80045), (1050, 77758), (1190, 68610), (1275, 64036), (1428, 57175), (1700, 48027), (1785, 45740), (2100, 38879), (2287, 35700), (2380, 34305), (2550, 32018), (2975, 27444), (3570, 22870), (4574, 17850), (5100, 16009), (5950, 13722), (6861, 11900), (7140, 11435), (8925, 9148)]