19825920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1721}}^1$

素因数の和:1748

約数の個数: 108

約数和(自身を含む): 68635476

約数和(自身を除く): 48809556

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1721, 1920, 2304, 2880, 3442, 3840, 5163, 5760, 6884, 8605, 10326, 11520, 13768, 15489, 17210, 20652, 25815, 27536, 30978, 34420, 41304, 51630, 55072, 61956, 68840, 77445, 82608, 103260, 110144, 123912, 137680, 154890, 165216, 206520, 220288, 247824, 275360, 309780, 330432, 413040, 440576, 495648, 550720, 619560, 660864, 826080, 991296, 1101440, 1239120, 1321728, 1652160, 1982592, 2202880, 2478240, 3304320, 3965184, 4956480, 6608640, 9912960, 19825920]

約数ペア:

[(1, 19825920), (2, 9912960), (3, 6608640), (4, 4956480), (5, 3965184), (6, 3304320), (8, 2478240), (9, 2202880), (10, 1982592), (12, 1652160), (15, 1321728), (16, 1239120), (18, 1101440), (20, 991296), (24, 826080), (30, 660864), (32, 619560), (36, 550720), (40, 495648), (45, 440576), (48, 413040), (60, 330432), (64, 309780), (72, 275360), (80, 247824), (90, 220288), (96, 206520), (120, 165216), (128, 154890), (144, 137680), (160, 123912), (180, 110144), (192, 103260), (240, 82608), (256, 77445), (288, 68840), (320, 61956), (360, 55072), (384, 51630), (480, 41304), (576, 34420), (640, 30978), (720, 27536), (768, 25815), (960, 20652), (1152, 17210), (1280, 15489), (1440, 13768), (1721, 11520), (1920, 10326), (2304, 8605), (2880, 6884), (3442, 5760), (3840, 5163)]