128771520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4327}}^1$

素因数の和:4378

約数の個数: 112

約数和(自身を含む): 422135808

約数和(自身を除く): 293364288

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, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2976, 3720, 4327, 4960, 5952, 7440, 8654, 9920, 12981, 14880, 17308, 21635, 25962, 29760, 34616, 43270, 51924, 64905, 69232, 86540, 103848, 129810, 134137, 138464, 173080, 207696, 259620, 268274, 276928, 346160, 402411, 415392, 519240, 536548, 670685, 692320, 804822, 830784, 1038480, 1073096, 1341370, 1384640, 1609644, 2012055, 2076960, 2146192, 2682740, 3219288, 4024110, 4153920, 4292384, 5365480, 6438576, 8048220, 8584768, 10730960, 12877152, 16096440, 21461920, 25754304, 32192880, 42923840, 64385760, 128771520]

約数ペア:

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