381521280

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{28387}}^1$

素因数の和:28416

約数の個数: 128

約数和(自身を含む): 1389876480

約数和(自身を除く): 1008355200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 28387, 56774, 85161, 113548, 141935, 170322, 198709, 227096, 283870, 340644, 397418, 425805, 454192, 567740, 596127, 681288, 794836, 851610, 908384, 993545, 1135480, 1192254, 1362576, 1589672, 1703220, 1816768, 1987090, 2270960, 2384508, 2725152, 2980635, 3179344, 3406440, 3633536, 3974180, 4541920, 4769016, 5450304, 5961270, 6358688, 6812880, 7948360, 9083840, 9538032, 10900608, 11922540, 12717376, 13625760, 15896720, 18167680, 19076064, 23845080, 25434752, 27251520, 31793440, 38152128, 47690160, 54503040, 63586880, 76304256, 95380320, 127173760, 190760640, 381521280]

約数ペア:

[(1, 381521280), (2, 190760640), (3, 127173760), (4, 95380320), (5, 76304256), (6, 63586880), (7, 54503040), (8, 47690160), (10, 38152128), (12, 31793440), (14, 27251520), (15, 25434752), (16, 23845080), (20, 19076064), (21, 18167680), (24, 15896720), (28, 13625760), (30, 12717376), (32, 11922540), (35, 10900608), (40, 9538032), (42, 9083840), (48, 7948360), (56, 6812880), (60, 6358688), (64, 5961270), (70, 5450304), (80, 4769016), (84, 4541920), (96, 3974180), (105, 3633536), (112, 3406440), (120, 3179344), (128, 2980635), (140, 2725152), (160, 2384508), (168, 2270960), (192, 1987090), (210, 1816768), (224, 1703220), (240, 1589672), (280, 1362576), (320, 1192254), (336, 1135480), (384, 993545), (420, 908384), (448, 851610), (480, 794836), (560, 681288), (640, 596127), (672, 567740), (840, 454192), (896, 425805), (960, 397418), (1120, 340644), (1344, 283870), (1680, 227096), (1920, 198709), (2240, 170322), (2688, 141935), (3360, 113548), (4480, 85161), (6720, 56774), (13440, 28387)]