257543040

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4327}}^1$

素因数の和:4380

約数の個数: 128

約数和(自身を含む): 847595520

約数和(自身を除く): 590052480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4327, 4960, 5952, 7440, 8654, 9920, 11904, 12981, 14880, 17308, 19840, 21635, 25962, 29760, 34616, 43270, 51924, 59520, 64905, 69232, 86540, 103848, 129810, 134137, 138464, 173080, 207696, 259620, 268274, 276928, 346160, 402411, 415392, 519240, 536548, 553856, 670685, 692320, 804822, 830784, 1038480, 1073096, 1341370, 1384640, 1609644, 1661568, 2012055, 2076960, 2146192, 2682740, 2769280, 3219288, 4024110, 4153920, 4292384, 5365480, 6438576, 8048220, 8307840, 8584768, 10730960, 12877152, 16096440, 17169536, 21461920, 25754304, 32192880, 42923840, 51508608, 64385760, 85847680, 128771520, 257543040]

約数ペア:

[(1, 257543040), (2, 128771520), (3, 85847680), (4, 64385760), (5, 51508608), (6, 42923840), (8, 32192880), (10, 25754304), (12, 21461920), (15, 17169536), (16, 16096440), (20, 12877152), (24, 10730960), (30, 8584768), (31, 8307840), (32, 8048220), (40, 6438576), (48, 5365480), (60, 4292384), (62, 4153920), (64, 4024110), (80, 3219288), (93, 2769280), (96, 2682740), (120, 2146192), (124, 2076960), (128, 2012055), (155, 1661568), (160, 1609644), (186, 1384640), (192, 1341370), (240, 1073096), (248, 1038480), (310, 830784), (320, 804822), (372, 692320), (384, 670685), (465, 553856), (480, 536548), (496, 519240), (620, 415392), (640, 402411), (744, 346160), (930, 276928), (960, 268274), (992, 259620), (1240, 207696), (1488, 173080), (1860, 138464), (1920, 134137), (1984, 129810), (2480, 103848), (2976, 86540), (3720, 69232), (3968, 64905), (4327, 59520), (4960, 51924), (5952, 43270), (7440, 34616), (8654, 29760), (9920, 25962), (11904, 21635), (12981, 19840), (14880, 17308)]