21028395840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{7499}}^1$

素因数の和:7669

約数の個数: 224

約数和(自身を含む): 70225920000

約数和(自身を除く): 49197524160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 127, 138, 160, 184, 192, 230, 240, 254, 276, 320, 345, 368, 381, 460, 480, 508, 552, 635, 690, 736, 762, 920, 960, 1016, 1104, 1270, 1380, 1472, 1524, 1840, 1905, 2032, 2208, 2540, 2760, 2921, 3048, 3680, 3810, 4064, 4416, 5080, 5520, 5842, 6096, 7360, 7499, 7620, 8128, 8763, 10160, 11040, 11684, 12192, 14605, 14998, 15240, 17526, 20320, 22080, 22497, 23368, 24384, 29210, 29996, 30480, 35052, 37495, 40640, 43815, 44994, 46736, 58420, 59992, 60960, 70104, 74990, 87630, 89988, 93472, 112485, 116840, 119984, 121920, 140208, 149980, 172477, 175260, 179976, 186944, 224970, 233680, 239968, 280416, 299960, 344954, 350520, 359952, 449940, 467360, 479936, 517431, 560832, 599920, 689908, 701040, 719904, 862385, 899880, 934720, 952373, 1034862, 1199840, 1379816, 1402080, 1439808, 1724770, 1799760, 1904746, 2069724, 2399680, 2587155, 2759632, 2804160, 2857119, 3449540, 3599520, 3809492, 4139448, 4761865, 5174310, 5519264, 5714238, 6899080, 7199040, 7618984, 8278896, 9523730, 10348620, 11038528, 11428476, 13798160, 14285595, 15237968, 16557792, 19047460, 20697240, 21904579, 22856952, 27596320, 28571190, 30475936, 33115584, 38094920, 41394480, 43809158, 45713904, 55192640, 57142380, 60951872, 65713737, 76189840, 82788960, 87618316, 91427808, 109522895, 114284760, 131427474, 152379680, 165577920, 175236632, 182855616, 219045790, 228569520, 262854948, 304759360, 328568685, 350473264, 438091580, 457139040, 525709896, 657137370, 700946528, 876183160, 914278080, 1051419792, 1314274740, 1401893056, 1752366320, 2102839584, 2628549480, 3504732640, 4205679168, 5257098960, 7009465280, 10514197920, 21028395840]

約数ペア:

[(1, 21028395840), (2, 10514197920), (3, 7009465280), (4, 5257098960), (5, 4205679168), (6, 3504732640), (8, 2628549480), (10, 2102839584), (12, 1752366320), (15, 1401893056), (16, 1314274740), (20, 1051419792), (23, 914278080), (24, 876183160), (30, 700946528), (32, 657137370), (40, 525709896), (46, 457139040), (48, 438091580), (60, 350473264), (64, 328568685), (69, 304759360), (80, 262854948), (92, 228569520), (96, 219045790), (115, 182855616), (120, 175236632), (127, 165577920), (138, 152379680), (160, 131427474), (184, 114284760), (192, 109522895), (230, 91427808), (240, 87618316), (254, 82788960), (276, 76189840), (320, 65713737), (345, 60951872), (368, 57142380), (381, 55192640), (460, 45713904), (480, 43809158), (508, 41394480), (552, 38094920), (635, 33115584), (690, 30475936), (736, 28571190), (762, 27596320), (920, 22856952), (960, 21904579), (1016, 20697240), (1104, 19047460), (1270, 16557792), (1380, 15237968), (1472, 14285595), (1524, 13798160), (1840, 11428476), (1905, 11038528), (2032, 10348620), (2208, 9523730), (2540, 8278896), (2760, 7618984), (2921, 7199040), (3048, 6899080), (3680, 5714238), (3810, 5519264), (4064, 5174310), (4416, 4761865), (5080, 4139448), (5520, 3809492), (5842, 3599520), (6096, 3449540), (7360, 2857119), (7499, 2804160), (7620, 2759632), (8128, 2587155), (8763, 2399680), (10160, 2069724), (11040, 1904746), (11684, 1799760), (12192, 1724770), (14605, 1439808), (14998, 1402080), (15240, 1379816), (17526, 1199840), (20320, 1034862), (22080, 952373), (22497, 934720), (23368, 899880), (24384, 862385), (29210, 719904), (29996, 701040), (30480, 689908), (35052, 599920), (37495, 560832), (40640, 517431), (43815, 479936), (44994, 467360), (46736, 449940), (58420, 359952), (59992, 350520), (60960, 344954), (70104, 299960), (74990, 280416), (87630, 239968), (89988, 233680), (93472, 224970), (112485, 186944), (116840, 179976), (119984, 175260), (121920, 172477), (140208, 149980)]