645962880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{839}}^1$

素因数の和:1262

約数の個数: 128

約数和(自身を含む): 2066601600

約数和(自身を除く): 1420638720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 401, 480, 640, 802, 839, 960, 1203, 1604, 1678, 1920, 2005, 2406, 2517, 3208, 3356, 4010, 4195, 4812, 5034, 6015, 6416, 6712, 8020, 8390, 9624, 10068, 12030, 12585, 12832, 13424, 16040, 16780, 19248, 20136, 24060, 25170, 25664, 26848, 32080, 33560, 38496, 40272, 48120, 50340, 51328, 53696, 64160, 67120, 76992, 80544, 96240, 100680, 107392, 128320, 134240, 153984, 161088, 192480, 201360, 256640, 268480, 322176, 336439, 384960, 402720, 536960, 672878, 769920, 805440, 1009317, 1345756, 1610880, 1682195, 2018634, 2691512, 3364390, 4037268, 5046585, 5383024, 6728780, 8074536, 10093170, 10766048, 13457560, 16149072, 20186340, 21532096, 26915120, 32298144, 40372680, 43064192, 53830240, 64596288, 80745360, 107660480, 129192576, 161490720, 215320960, 322981440, 645962880]

約数ペア:

[(1, 645962880), (2, 322981440), (3, 215320960), (4, 161490720), (5, 129192576), (6, 107660480), (8, 80745360), (10, 64596288), (12, 53830240), (15, 43064192), (16, 40372680), (20, 32298144), (24, 26915120), (30, 21532096), (32, 20186340), (40, 16149072), (48, 13457560), (60, 10766048), (64, 10093170), (80, 8074536), (96, 6728780), (120, 5383024), (128, 5046585), (160, 4037268), (192, 3364390), (240, 2691512), (320, 2018634), (384, 1682195), (401, 1610880), (480, 1345756), (640, 1009317), (802, 805440), (839, 769920), (960, 672878), (1203, 536960), (1604, 402720), (1678, 384960), (1920, 336439), (2005, 322176), (2406, 268480), (2517, 256640), (3208, 201360), (3356, 192480), (4010, 161088), (4195, 153984), (4812, 134240), (5034, 128320), (6015, 107392), (6416, 100680), (6712, 96240), (8020, 80544), (8390, 76992), (9624, 67120), (10068, 64160), (12030, 53696), (12585, 51328), (12832, 50340), (13424, 48120), (16040, 40272), (16780, 38496), (19248, 33560), (20136, 32080), (24060, 26848), (25170, 25664)]