640863744

素因数分解:

$2^9\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 160

約数和(自身を含む): 1809122304

約数和(自身を除く): 1168258560

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 43, 48, 62, 64, 86, 93, 96, 124, 128, 129, 172, 186, 192, 248, 256, 258, 313, 344, 372, 384, 496, 512, 516, 626, 688, 744, 768, 939, 992, 1032, 1252, 1333, 1376, 1488, 1536, 1878, 1984, 2064, 2504, 2666, 2752, 2976, 3756, 3968, 3999, 4128, 5008, 5332, 5504, 5952, 7512, 7936, 7998, 8256, 9703, 10016, 10664, 11008, 11904, 13459, 15024, 15872, 15996, 16512, 19406, 20032, 21328, 22016, 23808, 26918, 29109, 30048, 31992, 33024, 38812, 40064, 40377, 42656, 47616, 53836, 58218, 60096, 63984, 66048, 77624, 80128, 80754, 85312, 107672, 116436, 120192, 127968, 155248, 160256, 161508, 170624, 215344, 232872, 240384, 255936, 310496, 323016, 341248, 417229, 430688, 465744, 480768, 511872, 620992, 646032, 682496, 834458, 861376, 931488, 1023744, 1241984, 1251687, 1292064, 1668916, 1722752, 1862976, 2047488, 2483968, 2503374, 2584128, 3337832, 3445504, 3725952, 4967936, 5006748, 5168256, 6675664, 6891008, 7451904, 10013496, 10336512, 13351328, 14903808, 20026992, 20673024, 26702656, 40053984, 53405312, 80107968, 106810624, 160215936, 213621248, 320431872, 640863744]

約数ペア:

[(1, 640863744), (2, 320431872), (3, 213621248), (4, 160215936), (6, 106810624), (8, 80107968), (12, 53405312), (16, 40053984), (24, 26702656), (31, 20673024), (32, 20026992), (43, 14903808), (48, 13351328), (62, 10336512), (64, 10013496), (86, 7451904), (93, 6891008), (96, 6675664), (124, 5168256), (128, 5006748), (129, 4967936), (172, 3725952), (186, 3445504), (192, 3337832), (248, 2584128), (256, 2503374), (258, 2483968), (313, 2047488), (344, 1862976), (372, 1722752), (384, 1668916), (496, 1292064), (512, 1251687), (516, 1241984), (626, 1023744), (688, 931488), (744, 861376), (768, 834458), (939, 682496), (992, 646032), (1032, 620992), (1252, 511872), (1333, 480768), (1376, 465744), (1488, 430688), (1536, 417229), (1878, 341248), (1984, 323016), (2064, 310496), (2504, 255936), (2666, 240384), (2752, 232872), (2976, 215344), (3756, 170624), (3968, 161508), (3999, 160256), (4128, 155248), (5008, 127968), (5332, 120192), (5504, 116436), (5952, 107672), (7512, 85312), (7936, 80754), (7998, 80128), (8256, 77624), (9703, 66048), (10016, 63984), (10664, 60096), (11008, 58218), (11904, 53836), (13459, 47616), (15024, 42656), (15872, 40377), (15996, 40064), (16512, 38812), (19406, 33024), (20032, 31992), (21328, 30048), (22016, 29109), (23808, 26918)]