2781764440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:426

約数の個数: 256

約数和(自身を含む): 8128512000

約数和(自身を除く): 5346747560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 91, 92, 104, 115, 130, 140, 149, 161, 182, 184, 223, 230, 260, 280, 298, 299, 322, 364, 446, 455, 460, 520, 596, 598, 644, 728, 745, 805, 892, 910, 920, 1043, 1115, 1192, 1196, 1288, 1490, 1495, 1561, 1610, 1784, 1820, 1937, 2086, 2093, 2230, 2392, 2899, 2980, 2990, 3122, 3220, 3427, 3640, 3874, 4172, 4186, 4460, 5129, 5215, 5798, 5960, 5980, 6244, 6440, 6854, 7748, 7805, 8344, 8372, 8920, 9685, 10258, 10430, 10465, 11596, 11960, 12488, 13559, 13708, 14495, 15496, 15610, 16744, 17135, 19370, 20293, 20516, 20860, 20930, 23192, 23989, 25645, 27118, 27416, 28990, 31220, 33227, 34270, 35903, 38740, 40586, 41032, 41720, 41860, 44551, 47978, 51290, 54236, 57980, 62440, 66454, 66677, 67795, 68540, 71806, 77480, 81172, 83720, 89102, 95956, 101465, 102580, 108472, 115960, 119945, 132908, 133354, 135590, 137080, 143612, 162344, 166135, 178204, 179515, 191912, 202930, 205160, 222755, 232589, 239890, 265816, 266708, 271180, 287224, 311857, 332270, 333385, 356408, 359030, 405860, 431951, 445510, 465178, 466739, 479780, 533416, 542360, 623714, 664540, 666770, 718060, 764221, 811720, 863902, 891020, 930356, 933478, 959560, 1162945, 1247428, 1329080, 1333540, 1436120, 1528442, 1559285, 1727804, 1782040, 1860712, 1866956, 2159755, 2325890, 2333695, 2494856, 2667080, 3023657, 3056884, 3118570, 3455608, 3733912, 3821105, 4319510, 4651780, 4667390, 5349547, 6047314, 6113768, 6237140, 7642210, 8639020, 9303560, 9334780, 9934873, 10699094, 12094628, 12474280, 15118285, 15284420, 17278040, 18669560, 19869746, 21398188, 24189256, 26747735, 30236570, 30568840, 39739492, 42796376, 49674365, 53495470, 60473140, 69544111, 79478984, 99348730, 106990940, 120946280, 139088222, 198697460, 213981880, 278176444, 347720555, 397394920, 556352888, 695441110, 1390882220, 2781764440]

約数ペア:

[(1, 2781764440), (2, 1390882220), (4, 695441110), (5, 556352888), (7, 397394920), (8, 347720555), (10, 278176444), (13, 213981880), (14, 198697460), (20, 139088222), (23, 120946280), (26, 106990940), (28, 99348730), (35, 79478984), (40, 69544111), (46, 60473140), (52, 53495470), (56, 49674365), (65, 42796376), (70, 39739492), (91, 30568840), (92, 30236570), (104, 26747735), (115, 24189256), (130, 21398188), (140, 19869746), (149, 18669560), (161, 17278040), (182, 15284420), (184, 15118285), (223, 12474280), (230, 12094628), (260, 10699094), (280, 9934873), (298, 9334780), (299, 9303560), (322, 8639020), (364, 7642210), (446, 6237140), (455, 6113768), (460, 6047314), (520, 5349547), (596, 4667390), (598, 4651780), (644, 4319510), (728, 3821105), (745, 3733912), (805, 3455608), (892, 3118570), (910, 3056884), (920, 3023657), (1043, 2667080), (1115, 2494856), (1192, 2333695), (1196, 2325890), (1288, 2159755), (1490, 1866956), (1495, 1860712), (1561, 1782040), (1610, 1727804), (1784, 1559285), (1820, 1528442), (1937, 1436120), (2086, 1333540), (2093, 1329080), (2230, 1247428), (2392, 1162945), (2899, 959560), (2980, 933478), (2990, 930356), (3122, 891020), (3220, 863902), (3427, 811720), (3640, 764221), (3874, 718060), (4172, 666770), (4186, 664540), (4460, 623714), (5129, 542360), (5215, 533416), (5798, 479780), (5960, 466739), (5980, 465178), (6244, 445510), (6440, 431951), (6854, 405860), (7748, 359030), (7805, 356408), (8344, 333385), (8372, 332270), (8920, 311857), (9685, 287224), (10258, 271180), (10430, 266708), (10465, 265816), (11596, 239890), (11960, 232589), (12488, 222755), (13559, 205160), (13708, 202930), (14495, 191912), (15496, 179515), (15610, 178204), (16744, 166135), (17135, 162344), (19370, 143612), (20293, 137080), (20516, 135590), (20860, 133354), (20930, 132908), (23192, 119945), (23989, 115960), (25645, 108472), (27118, 102580), (27416, 101465), (28990, 95956), (31220, 89102), (33227, 83720), (34270, 81172), (35903, 77480), (38740, 71806), (40586, 68540), (41032, 67795), (41720, 66677), (41860, 66454), (44551, 62440), (47978, 57980), (51290, 54236)]