21280187520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3694477}}^1$

素因数の和:3694502

約数の個数: 96

約数和(自身を含む): 73483167420

約数和(自身を除く): 52202979900

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, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 5760, 3694477, 7388954, 11083431, 14777908, 18472385, 22166862, 29555816, 33250293, 36944770, 44333724, 55417155, 59111632, 66500586, 73889540, 88667448, 110834310, 118223264, 133001172, 147779080, 166251465, 177334896, 221668620, 236446528, 266002344, 295558160, 332502930, 354669792, 443337240, 472893056, 532004688, 591116320, 665005860, 709339584, 886674480, 1064009376, 1182232640, 1330011720, 1418679168, 1773348960, 2128018752, 2364465280, 2660023440, 3546697920, 4256037504, 5320046880, 7093395840, 10640093760, 21280187520]

約数ペア:

[(1, 21280187520), (2, 10640093760), (3, 7093395840), (4, 5320046880), (5, 4256037504), (6, 3546697920), (8, 2660023440), (9, 2364465280), (10, 2128018752), (12, 1773348960), (15, 1418679168), (16, 1330011720), (18, 1182232640), (20, 1064009376), (24, 886674480), (30, 709339584), (32, 665005860), (36, 591116320), (40, 532004688), (45, 472893056), (48, 443337240), (60, 354669792), (64, 332502930), (72, 295558160), (80, 266002344), (90, 236446528), (96, 221668620), (120, 177334896), (128, 166251465), (144, 147779080), (160, 133001172), (180, 118223264), (192, 110834310), (240, 88667448), (288, 73889540), (320, 66500586), (360, 59111632), (384, 55417155), (480, 44333724), (576, 36944770), (640, 33250293), (720, 29555816), (960, 22166862), (1152, 18472385), (1440, 14777908), (1920, 11083431), (2880, 7388954), (5760, 3694477)]