20516312880

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1356899}}^1$

素因数の和:1356928

約数の個数: 160

約数和(自身を含む): 80762688000

約数和(自身を除く): 60246375120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 1356899, 2713798, 4070697, 5427596, 6784495, 8141394, 9498293, 10855192, 12212091, 13568990, 16282788, 18996586, 20353485, 21710384, 24424182, 27137980, 28494879, 32565576, 36636273, 37993172, 40706970, 47491465, 48848364, 54275960, 56989758, 61060455, 65131152, 73272546, 75986344, 81413940, 85484637, 94982930, 97696728, 108551920, 113979516, 122120910, 142474395, 146545092, 151972688, 162827880, 170969274, 183181365, 189965860, 195393456, 227959032, 244241820, 256453911, 284948790, 293090184, 325655760, 341938548, 366362730, 379931720, 427423185, 455918064, 488483640, 512907822, 569897580, 586180368, 683877096, 732725460, 759863440, 854846370, 976967280, 1025815644, 1139795160, 1282269555, 1367754192, 1465450920, 1709692740, 2051631288, 2279590320, 2564539110, 2930901840, 3419385480, 4103262576, 5129078220, 6838770960, 10258156440, 20516312880]

約数ペア:

[(1, 20516312880), (2, 10258156440), (3, 6838770960), (4, 5129078220), (5, 4103262576), (6, 3419385480), (7, 2930901840), (8, 2564539110), (9, 2279590320), (10, 2051631288), (12, 1709692740), (14, 1465450920), (15, 1367754192), (16, 1282269555), (18, 1139795160), (20, 1025815644), (21, 976967280), (24, 854846370), (27, 759863440), (28, 732725460), (30, 683877096), (35, 586180368), (36, 569897580), (40, 512907822), (42, 488483640), (45, 455918064), (48, 427423185), (54, 379931720), (56, 366362730), (60, 341938548), (63, 325655760), (70, 293090184), (72, 284948790), (80, 256453911), (84, 244241820), (90, 227959032), (105, 195393456), (108, 189965860), (112, 183181365), (120, 170969274), (126, 162827880), (135, 151972688), (140, 146545092), (144, 142474395), (168, 122120910), (180, 113979516), (189, 108551920), (210, 97696728), (216, 94982930), (240, 85484637), (252, 81413940), (270, 75986344), (280, 73272546), (315, 65131152), (336, 61060455), (360, 56989758), (378, 54275960), (420, 48848364), (432, 47491465), (504, 40706970), (540, 37993172), (560, 36636273), (630, 32565576), (720, 28494879), (756, 27137980), (840, 24424182), (945, 21710384), (1008, 20353485), (1080, 18996586), (1260, 16282788), (1512, 13568990), (1680, 12212091), (1890, 10855192), (2160, 9498293), (2520, 8141394), (3024, 6784495), (3780, 5427596), (5040, 4070697), (7560, 2713798), (15120, 1356899)]