20996957520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{378733}}^1$

素因数の和:378770

約数の個数: 240

約数和(自身を含む): 87914765952

約数和(自身を除く): 66917808432

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1155, 1232, 1260, 1320, 1386, 1540, 1584, 1680, 1848, 1980, 2310, 2520, 2640, 2772, 3080, 3465, 3696, 3960, 4620, 5040, 5544, 6160, 6930, 7920, 9240, 11088, 13860, 18480, 27720, 55440, 378733, 757466, 1136199, 1514932, 1893665, 2272398, 2651131, 3029864, 3408597, 3787330, 4166063, 4544796, 5302262, 5680995, 6059728, 6817194, 7574660, 7953393, 8332126, 9089592, 10604524, 11361990, 12498189, 13255655, 13634388, 15149320, 15906786, 16664252, 17042985, 18179184, 20830315, 21209048, 22723980, 23860179, 24996378, 26511310, 27268776, 29162441, 30298640, 31813572, 33328504, 34085970, 37494567, 39766965, 41660630, 42418096, 45447960, 47720358, 49992756, 53022620, 54537552, 58324882, 62490945, 63627144, 66657008, 68171940, 74989134, 79533930, 83321260, 87487323, 90895920, 95440716, 99985512, 106045240, 116649764, 119300895, 124981890, 127254288, 136343880, 145812205, 149978268, 159067860, 166642520, 174974646, 187472835, 190881432, 199971024, 212090480, 233299528, 238601790, 249963780, 262461969, 272687760, 291624410, 299956536, 318135720, 333285040, 349949292, 374945670, 381762864, 437436615, 466599056, 477203580, 499927560, 524923938, 583248820, 599913072, 636271440, 699898584, 749891340, 874873230, 954407160, 999855120, 1049847876, 1166497640, 1312309845, 1399797168, 1499782680, 1749746460, 1908814320, 2099695752, 2332995280, 2624619690, 2999565360, 3499492920, 4199391504, 5249239380, 6998985840, 10498478760, 20996957520]

約数ペア:

[(1, 20996957520), (2, 10498478760), (3, 6998985840), (4, 5249239380), (5, 4199391504), (6, 3499492920), (7, 2999565360), (8, 2624619690), (9, 2332995280), (10, 2099695752), (11, 1908814320), (12, 1749746460), (14, 1499782680), (15, 1399797168), (16, 1312309845), (18, 1166497640), (20, 1049847876), (21, 999855120), (22, 954407160), (24, 874873230), (28, 749891340), (30, 699898584), (33, 636271440), (35, 599913072), (36, 583248820), (40, 524923938), (42, 499927560), (44, 477203580), (45, 466599056), (48, 437436615), (55, 381762864), (56, 374945670), (60, 349949292), (63, 333285040), (66, 318135720), (70, 299956536), (72, 291624410), (77, 272687760), (80, 262461969), (84, 249963780), (88, 238601790), (90, 233299528), (99, 212090480), (105, 199971024), (110, 190881432), (112, 187472835), (120, 174974646), (126, 166642520), (132, 159067860), (140, 149978268), (144, 145812205), (154, 136343880), (165, 127254288), (168, 124981890), (176, 119300895), (180, 116649764), (198, 106045240), (210, 99985512), (220, 95440716), (231, 90895920), (240, 87487323), (252, 83321260), (264, 79533930), (280, 74989134), (308, 68171940), (315, 66657008), (330, 63627144), (336, 62490945), (360, 58324882), (385, 54537552), (396, 53022620), (420, 49992756), (440, 47720358), (462, 45447960), (495, 42418096), (504, 41660630), (528, 39766965), (560, 37494567), (616, 34085970), (630, 33328504), (660, 31813572), (693, 30298640), (720, 29162441), (770, 27268776), (792, 26511310), (840, 24996378), (880, 23860179), (924, 22723980), (990, 21209048), (1008, 20830315), (1155, 18179184), (1232, 17042985), (1260, 16664252), (1320, 15906786), (1386, 15149320), (1540, 13634388), (1584, 13255655), (1680, 12498189), (1848, 11361990), (1980, 10604524), (2310, 9089592), (2520, 8332126), (2640, 7953393), (2772, 7574660), (3080, 6817194), (3465, 6059728), (3696, 5680995), (3960, 5302262), (4620, 4544796), (5040, 4166063), (5544, 3787330), (6160, 3408597), (6930, 3029864), (7920, 2651131), (9240, 2272398), (11088, 1893665), (13860, 1514932), (18480, 1136199), (27720, 757466), (55440, 378733)]