21002654000

素因数分解:

$2^4\times 5^3\times {\mathrm{263}}^1\times {\mathrm{39929}}^1$

素因数の和:40215

約数の個数: 80

約数和(自身を含む): 50978790720

約数和(自身を除く): 29976136720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 263, 400, 500, 526, 1000, 1052, 1315, 2000, 2104, 2630, 4208, 5260, 6575, 10520, 13150, 21040, 26300, 32875, 39929, 52600, 65750, 79858, 105200, 131500, 159716, 199645, 263000, 319432, 399290, 526000, 638864, 798580, 998225, 1597160, 1996450, 3194320, 3992900, 4991125, 7985800, 9982250, 10501327, 15971600, 19964500, 21002654, 39929000, 42005308, 52506635, 79858000, 84010616, 105013270, 168021232, 210026540, 262533175, 420053080, 525066350, 840106160, 1050132700, 1312665875, 2100265400, 2625331750, 4200530800, 5250663500, 10501327000, 21002654000]

約数ペア:

[(1, 21002654000), (2, 10501327000), (4, 5250663500), (5, 4200530800), (8, 2625331750), (10, 2100265400), (16, 1312665875), (20, 1050132700), (25, 840106160), (40, 525066350), (50, 420053080), (80, 262533175), (100, 210026540), (125, 168021232), (200, 105013270), (250, 84010616), (263, 79858000), (400, 52506635), (500, 42005308), (526, 39929000), (1000, 21002654), (1052, 19964500), (1315, 15971600), (2000, 10501327), (2104, 9982250), (2630, 7985800), (4208, 4991125), (5260, 3992900), (6575, 3194320), (10520, 1996450), (13150, 1597160), (21040, 998225), (26300, 798580), (32875, 638864), (39929, 526000), (52600, 399290), (65750, 319432), (79858, 263000), (105200, 199645), (131500, 159716)]