20341440

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1009}}^1$

素因数の和:1039

約数の個数: 168

約数和(自身を含む): 80040480

約数和(自身を除く): 59699040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1009, 1120, 1260, 1344, 1440, 1680, 2016, 2018, 2240, 2520, 2880, 3027, 3360, 4032, 4036, 5040, 5045, 6054, 6720, 7063, 8072, 9081, 10080, 10090, 12108, 14126, 15135, 16144, 18162, 20160, 20180, 21189, 24216, 28252, 30270, 32288, 35315, 36324, 40360, 42378, 45405, 48432, 56504, 60540, 63567, 64576, 70630, 72648, 80720, 84756, 90810, 96864, 105945, 113008, 121080, 127134, 141260, 145296, 161440, 169512, 181620, 193728, 211890, 226016, 242160, 254268, 282520, 290592, 317835, 322880, 339024, 363240, 423780, 452032, 484320, 508536, 565040, 581184, 635670, 678048, 726480, 847560, 968640, 1017072, 1130080, 1271340, 1356096, 1452960, 1695120, 2034144, 2260160, 2542680, 2905920, 3390240, 4068288, 5085360, 6780480, 10170720, 20341440]

約数ペア:

[(1, 20341440), (2, 10170720), (3, 6780480), (4, 5085360), (5, 4068288), (6, 3390240), (7, 2905920), (8, 2542680), (9, 2260160), (10, 2034144), (12, 1695120), (14, 1452960), (15, 1356096), (16, 1271340), (18, 1130080), (20, 1017072), (21, 968640), (24, 847560), (28, 726480), (30, 678048), (32, 635670), (35, 581184), (36, 565040), (40, 508536), (42, 484320), (45, 452032), (48, 423780), (56, 363240), (60, 339024), (63, 322880), (64, 317835), (70, 290592), (72, 282520), (80, 254268), (84, 242160), (90, 226016), (96, 211890), (105, 193728), (112, 181620), (120, 169512), (126, 161440), (140, 145296), (144, 141260), (160, 127134), (168, 121080), (180, 113008), (192, 105945), (210, 96864), (224, 90810), (240, 84756), (252, 80720), (280, 72648), (288, 70630), (315, 64576), (320, 63567), (336, 60540), (360, 56504), (420, 48432), (448, 45405), (480, 42378), (504, 40360), (560, 36324), (576, 35315), (630, 32288), (672, 30270), (720, 28252), (840, 24216), (960, 21189), (1008, 20180), (1009, 20160), (1120, 18162), (1260, 16144), (1344, 15135), (1440, 14126), (1680, 12108), (2016, 10090), (2018, 10080), (2240, 9081), (2520, 8072), (2880, 7063), (3027, 6720), (3360, 6054), (4032, 5045), (4036, 5040)]