21570780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 288

約数和(自身を含む): 82736640

約数和(自身を除く): 61165860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 23, 28, 29, 30, 33, 35, 42, 44, 46, 49, 55, 58, 60, 66, 69, 70, 77, 84, 87, 92, 98, 105, 110, 115, 116, 132, 138, 140, 145, 147, 154, 161, 165, 174, 196, 203, 210, 220, 230, 231, 245, 253, 276, 290, 294, 308, 319, 322, 330, 345, 348, 385, 406, 420, 435, 460, 462, 483, 490, 506, 539, 580, 588, 609, 638, 644, 660, 667, 690, 735, 759, 770, 805, 812, 870, 924, 957, 966, 980, 1012, 1015, 1078, 1127, 1155, 1218, 1265, 1276, 1334, 1380, 1421, 1470, 1518, 1540, 1595, 1610, 1617, 1740, 1771, 1914, 1932, 2001, 2030, 2156, 2233, 2254, 2310, 2415, 2436, 2530, 2668, 2695, 2842, 2940, 3036, 3045, 3190, 3220, 3234, 3335, 3381, 3542, 3795, 3828, 4002, 4060, 4263, 4466, 4508, 4620, 4669, 4785, 4830, 5060, 5313, 5390, 5635, 5684, 6090, 6380, 6468, 6670, 6699, 6762, 7084, 7105, 7337, 7590, 8004, 8085, 8526, 8855, 8932, 9338, 9570, 9660, 10005, 10626, 10780, 11165, 11270, 12180, 12397, 13340, 13398, 13524, 14007, 14210, 14674, 15180, 15631, 16170, 16905, 17052, 17710, 18676, 19140, 20010, 21252, 21315, 22011, 22330, 22540, 23345, 24794, 26565, 26796, 28014, 28420, 29348, 31262, 32340, 32683, 33495, 33810, 35420, 36685, 37191, 40020, 42630, 44022, 44660, 46690, 46893, 49588, 51359, 53130, 56028, 61985, 62524, 65366, 66990, 67620, 70035, 73370, 74382, 78155, 85260, 88044, 93380, 93786, 98049, 102718, 106260, 110055, 123970, 130732, 133980, 140070, 146740, 148764, 154077, 156310, 163415, 185955, 187572, 196098, 205436, 220110, 234465, 247940, 256795, 280140, 308154, 312620, 326830, 359513, 371910, 392196, 440220, 468930, 490245, 513590, 616308, 653660, 719026, 743820, 770385, 937860, 980490, 1027180, 1078539, 1438052, 1540770, 1797565, 1960980, 2157078, 3081540, 3595130, 4314156, 5392695, 7190260, 10785390, 21570780]

約数ペア:

[(1, 21570780), (2, 10785390), (3, 7190260), (4, 5392695), (5, 4314156), (6, 3595130), (7, 3081540), (10, 2157078), (11, 1960980), (12, 1797565), (14, 1540770), (15, 1438052), (20, 1078539), (21, 1027180), (22, 980490), (23, 937860), (28, 770385), (29, 743820), (30, 719026), (33, 653660), (35, 616308), (42, 513590), (44, 490245), (46, 468930), (49, 440220), (55, 392196), (58, 371910), (60, 359513), (66, 326830), (69, 312620), (70, 308154), (77, 280140), (84, 256795), (87, 247940), (92, 234465), (98, 220110), (105, 205436), (110, 196098), (115, 187572), (116, 185955), (132, 163415), (138, 156310), (140, 154077), (145, 148764), (147, 146740), (154, 140070), (161, 133980), (165, 130732), (174, 123970), (196, 110055), (203, 106260), (210, 102718), (220, 98049), (230, 93786), (231, 93380), (245, 88044), (253, 85260), (276, 78155), (290, 74382), (294, 73370), (308, 70035), (319, 67620), (322, 66990), (330, 65366), (345, 62524), (348, 61985), (385, 56028), (406, 53130), (420, 51359), (435, 49588), (460, 46893), (462, 46690), (483, 44660), (490, 44022), (506, 42630), (539, 40020), (580, 37191), (588, 36685), (609, 35420), (638, 33810), (644, 33495), (660, 32683), (667, 32340), (690, 31262), (735, 29348), (759, 28420), (770, 28014), (805, 26796), (812, 26565), (870, 24794), (924, 23345), (957, 22540), (966, 22330), (980, 22011), (1012, 21315), (1015, 21252), (1078, 20010), (1127, 19140), (1155, 18676), (1218, 17710), (1265, 17052), (1276, 16905), (1334, 16170), (1380, 15631), (1421, 15180), (1470, 14674), (1518, 14210), (1540, 14007), (1595, 13524), (1610, 13398), (1617, 13340), (1740, 12397), (1771, 12180), (1914, 11270), (1932, 11165), (2001, 10780), (2030, 10626), (2156, 10005), (2233, 9660), (2254, 9570), (2310, 9338), (2415, 8932), (2436, 8855), (2530, 8526), (2668, 8085), (2695, 8004), (2842, 7590), (2940, 7337), (3036, 7105), (3045, 7084), (3190, 6762), (3220, 6699), (3234, 6670), (3335, 6468), (3381, 6380), (3542, 6090), (3795, 5684), (3828, 5635), (4002, 5390), (4060, 5313), (4263, 5060), (4466, 4830), (4508, 4785), (4620, 4669)]