1990002960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251263}}^1$

素因数の和:251293

約数の個数: 120

約数和(自身を含む): 7290676224

約数和(自身を除く): 5300673264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 251263, 502526, 753789, 1005052, 1256315, 1507578, 2010104, 2261367, 2512630, 2763893, 3015156, 3768945, 4020208, 4522734, 5025260, 5527786, 6030312, 7537890, 8291679, 9045468, 10050520, 11055572, 11306835, 12060624, 13819465, 15075780, 16583358, 18090936, 20101040, 22111144, 22613670, 24875037, 27638930, 30151560, 33166716, 36181872, 41458395, 44222288, 45227340, 49750074, 55277860, 60303120, 66333432, 82916790, 90454680, 99500148, 110555720, 124375185, 132666864, 165833580, 180909360, 199000296, 221111440, 248750370, 331667160, 398000592, 497500740, 663334320, 995001480, 1990002960]

約数ペア:

[(1, 1990002960), (2, 995001480), (3, 663334320), (4, 497500740), (5, 398000592), (6, 331667160), (8, 248750370), (9, 221111440), (10, 199000296), (11, 180909360), (12, 165833580), (15, 132666864), (16, 124375185), (18, 110555720), (20, 99500148), (22, 90454680), (24, 82916790), (30, 66333432), (33, 60303120), (36, 55277860), (40, 49750074), (44, 45227340), (45, 44222288), (48, 41458395), (55, 36181872), (60, 33166716), (66, 30151560), (72, 27638930), (80, 24875037), (88, 22613670), (90, 22111144), (99, 20101040), (110, 18090936), (120, 16583358), (132, 15075780), (144, 13819465), (165, 12060624), (176, 11306835), (180, 11055572), (198, 10050520), (220, 9045468), (240, 8291679), (264, 7537890), (330, 6030312), (360, 5527786), (396, 5025260), (440, 4522734), (495, 4020208), (528, 3768945), (660, 3015156), (720, 2763893), (792, 2512630), (880, 2261367), (990, 2010104), (1320, 1507578), (1584, 1256315), (1980, 1005052), (2640, 753789), (3960, 502526), (7920, 251263)]