21081444480

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1219991}}^1$

素因数の和:1220019

約数の個数: 128

約数和(自身を含む): 74663510400

約数和(自身を除く): 53582065920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 1219991, 2439982, 3659973, 4879964, 6099955, 7319946, 9759928, 10979919, 12199910, 14639892, 18299865, 19519856, 21959838, 24399820, 29279784, 32939757, 36599730, 39039712, 43919676, 48799640, 54899595, 58559568, 65879514, 73199460, 78079424, 87839352, 97599280, 109799190, 117119136, 131759028, 146398920, 156158848, 164698785, 175678704, 195198560, 219598380, 234238272, 263518056, 292797840, 329397570, 351357408, 390397120, 439196760, 468476544, 527036112, 585595680, 658795140, 702714816, 780794240, 878393520, 1054072224, 1171191360, 1317590280, 1405429632, 1756787040, 2108144448, 2342382720, 2635180560, 3513574080, 4216288896, 5270361120, 7027148160, 10540722240, 21081444480]

約数ペア:

[(1, 21081444480), (2, 10540722240), (3, 7027148160), (4, 5270361120), (5, 4216288896), (6, 3513574080), (8, 2635180560), (9, 2342382720), (10, 2108144448), (12, 1756787040), (15, 1405429632), (16, 1317590280), (18, 1171191360), (20, 1054072224), (24, 878393520), (27, 780794240), (30, 702714816), (32, 658795140), (36, 585595680), (40, 527036112), (45, 468476544), (48, 439196760), (54, 390397120), (60, 351357408), (64, 329397570), (72, 292797840), (80, 263518056), (90, 234238272), (96, 219598380), (108, 195198560), (120, 175678704), (128, 164698785), (135, 156158848), (144, 146398920), (160, 131759028), (180, 117119136), (192, 109799190), (216, 97599280), (240, 87839352), (270, 78079424), (288, 73199460), (320, 65879514), (360, 58559568), (384, 54899595), (432, 48799640), (480, 43919676), (540, 39039712), (576, 36599730), (640, 32939757), (720, 29279784), (864, 24399820), (960, 21959838), (1080, 19519856), (1152, 18299865), (1440, 14639892), (1728, 12199910), (1920, 10979919), (2160, 9759928), (2880, 7319946), (3456, 6099955), (4320, 4879964), (5760, 3659973), (8640, 2439982), (17280, 1219991)]