1998913840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:496

約数の個数: 240

約数和(自身を含む): 5956118784

約数和(自身を除く): 3957204944

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 151, 154, 176, 196, 220, 245, 280, 302, 307, 308, 385, 392, 440, 490, 539, 560, 604, 614, 616, 755, 770, 784, 880, 980, 1057, 1078, 1208, 1228, 1232, 1510, 1535, 1540, 1661, 1960, 2114, 2149, 2156, 2416, 2456, 2695, 3020, 3070, 3080, 3322, 3377, 3920, 4228, 4298, 4312, 4912, 5285, 5390, 6040, 6140, 6160, 6644, 6754, 7399, 8305, 8456, 8596, 8624, 10570, 10745, 10780, 11627, 12080, 12280, 13288, 13508, 14798, 15043, 16610, 16885, 16912, 17192, 21140, 21490, 21560, 23254, 23639, 24560, 26576, 27016, 29596, 30086, 33220, 33770, 34384, 36995, 42280, 42980, 43120, 46357, 46508, 47278, 54032, 58135, 59192, 60172, 66440, 67540, 73990, 75215, 81389, 84560, 85960, 92714, 93016, 94556, 116270, 118195, 118384, 120344, 132880, 135080, 147980, 150430, 162778, 165473, 171920, 185428, 186032, 189112, 231785, 232540, 236390, 240688, 270160, 295960, 300860, 324499, 325556, 330946, 370856, 378224, 406945, 463570, 465080, 472780, 509927, 591920, 601720, 648998, 651112, 661892, 741712, 813890, 827365, 927140, 930160, 945560, 1019854, 1203440, 1297996, 1302224, 1323784, 1622495, 1627780, 1654730, 1854280, 1891120, 2039708, 2271493, 2549635, 2595992, 2647568, 3244990, 3255560, 3309460, 3569489, 3708560, 4079416, 4542986, 5099270, 5191984, 6489980, 6511120, 6618920, 7138978, 8158832, 9085972, 10198540, 11357465, 12979960, 13237840, 14277956, 17847445, 18171944, 20397080, 22714930, 24986423, 25959920, 28555912, 35694890, 36343888, 40794160, 45429860, 49972846, 57111824, 71389780, 90859720, 99945692, 124932115, 142779560, 181719440, 199891384, 249864230, 285559120, 399782768, 499728460, 999456920, 1998913840]

約数ペア:

[(1, 1998913840), (2, 999456920), (4, 499728460), (5, 399782768), (7, 285559120), (8, 249864230), (10, 199891384), (11, 181719440), (14, 142779560), (16, 124932115), (20, 99945692), (22, 90859720), (28, 71389780), (35, 57111824), (40, 49972846), (44, 45429860), (49, 40794160), (55, 36343888), (56, 35694890), (70, 28555912), (77, 25959920), (80, 24986423), (88, 22714930), (98, 20397080), (110, 18171944), (112, 17847445), (140, 14277956), (151, 13237840), (154, 12979960), (176, 11357465), (196, 10198540), (220, 9085972), (245, 8158832), (280, 7138978), (302, 6618920), (307, 6511120), (308, 6489980), (385, 5191984), (392, 5099270), (440, 4542986), (490, 4079416), (539, 3708560), (560, 3569489), (604, 3309460), (614, 3255560), (616, 3244990), (755, 2647568), (770, 2595992), (784, 2549635), (880, 2271493), (980, 2039708), (1057, 1891120), (1078, 1854280), (1208, 1654730), (1228, 1627780), (1232, 1622495), (1510, 1323784), (1535, 1302224), (1540, 1297996), (1661, 1203440), (1960, 1019854), (2114, 945560), (2149, 930160), (2156, 927140), (2416, 827365), (2456, 813890), (2695, 741712), (3020, 661892), (3070, 651112), (3080, 648998), (3322, 601720), (3377, 591920), (3920, 509927), (4228, 472780), (4298, 465080), (4312, 463570), (4912, 406945), (5285, 378224), (5390, 370856), (6040, 330946), (6140, 325556), (6160, 324499), (6644, 300860), (6754, 295960), (7399, 270160), (8305, 240688), (8456, 236390), (8596, 232540), (8624, 231785), (10570, 189112), (10745, 186032), (10780, 185428), (11627, 171920), (12080, 165473), (12280, 162778), (13288, 150430), (13508, 147980), (14798, 135080), (15043, 132880), (16610, 120344), (16885, 118384), (16912, 118195), (17192, 116270), (21140, 94556), (21490, 93016), (21560, 92714), (23254, 85960), (23639, 84560), (24560, 81389), (26576, 75215), (27016, 73990), (29596, 67540), (30086, 66440), (33220, 60172), (33770, 59192), (34384, 58135), (36995, 54032), (42280, 47278), (42980, 46508), (43120, 46357)]