638922240

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2521}}^1$

素因数の和:2561

約数の個数: 240

約数和(自身を含む): 2414885616

約数和(自身を除く): 1775963376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 512, 528, 576, 640, 660, 704, 720, 768, 792, 880, 960, 990, 1056, 1152, 1280, 1320, 1408, 1440, 1536, 1584, 1760, 1920, 1980, 2112, 2304, 2521, 2560, 2640, 2816, 2880, 3168, 3520, 3840, 3960, 4224, 4608, 5042, 5280, 5632, 5760, 6336, 7040, 7563, 7680, 7920, 8448, 10084, 10560, 11520, 12605, 12672, 14080, 15126, 15840, 16896, 20168, 21120, 22689, 23040, 25210, 25344, 27731, 28160, 30252, 31680, 37815, 40336, 42240, 45378, 50420, 50688, 55462, 60504, 63360, 75630, 80672, 83193, 84480, 90756, 100840, 110924, 113445, 121008, 126720, 138655, 151260, 161344, 166386, 181512, 201680, 221848, 226890, 242016, 249579, 253440, 277310, 302520, 322688, 332772, 363024, 403360, 415965, 443696, 453780, 484032, 499158, 554620, 605040, 645376, 665544, 726048, 806720, 831930, 887392, 907560, 968064, 998316, 1109240, 1210080, 1247895, 1290752, 1331088, 1452096, 1613440, 1663860, 1774784, 1815120, 1936128, 1996632, 2218480, 2420160, 2495790, 2662176, 2904192, 3226880, 3327720, 3549568, 3630240, 3872256, 3993264, 4436960, 4840320, 4991580, 5324352, 5808384, 6453760, 6655440, 7099136, 7260480, 7986528, 8873920, 9680640, 9983160, 10648704, 11616768, 13310880, 14198272, 14520960, 15973056, 17747840, 19361280, 19966320, 21297408, 26621760, 29041920, 31946112, 35495680, 39932640, 42594816, 53243520, 58083840, 63892224, 70991360, 79865280, 106487040, 127784448, 159730560, 212974080, 319461120, 638922240]

約数ペア:

[(1, 638922240), (2, 319461120), (3, 212974080), (4, 159730560), (5, 127784448), (6, 106487040), (8, 79865280), (9, 70991360), (10, 63892224), (11, 58083840), (12, 53243520), (15, 42594816), (16, 39932640), (18, 35495680), (20, 31946112), (22, 29041920), (24, 26621760), (30, 21297408), (32, 19966320), (33, 19361280), (36, 17747840), (40, 15973056), (44, 14520960), (45, 14198272), (48, 13310880), (55, 11616768), (60, 10648704), (64, 9983160), (66, 9680640), (72, 8873920), (80, 7986528), (88, 7260480), (90, 7099136), (96, 6655440), (99, 6453760), (110, 5808384), (120, 5324352), (128, 4991580), (132, 4840320), (144, 4436960), (160, 3993264), (165, 3872256), (176, 3630240), (180, 3549568), (192, 3327720), (198, 3226880), (220, 2904192), (240, 2662176), (256, 2495790), (264, 2420160), (288, 2218480), (320, 1996632), (330, 1936128), (352, 1815120), (360, 1774784), (384, 1663860), (396, 1613440), (440, 1452096), (480, 1331088), (495, 1290752), (512, 1247895), (528, 1210080), (576, 1109240), (640, 998316), (660, 968064), (704, 907560), (720, 887392), (768, 831930), (792, 806720), (880, 726048), (960, 665544), (990, 645376), (1056, 605040), (1152, 554620), (1280, 499158), (1320, 484032), (1408, 453780), (1440, 443696), (1536, 415965), (1584, 403360), (1760, 363024), (1920, 332772), (1980, 322688), (2112, 302520), (2304, 277310), (2521, 253440), (2560, 249579), (2640, 242016), (2816, 226890), (2880, 221848), (3168, 201680), (3520, 181512), (3840, 166386), (3960, 161344), (4224, 151260), (4608, 138655), (5042, 126720), (5280, 121008), (5632, 113445), (5760, 110924), (6336, 100840), (7040, 90756), (7563, 84480), (7680, 83193), (7920, 80672), (8448, 75630), (10084, 63360), (10560, 60504), (11520, 55462), (12605, 50688), (12672, 50420), (14080, 45378), (15126, 42240), (15840, 40336), (16896, 37815), (20168, 31680), (21120, 30252), (22689, 28160), (23040, 27731), (25210, 25344)]