81611520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:478

約数の個数: 144

約数和(自身を含む): 266226912

約数和(自身を除く): 184615392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 159, 160, 192, 212, 240, 256, 265, 318, 320, 384, 401, 424, 480, 530, 636, 640, 768, 795, 802, 848, 960, 1060, 1203, 1272, 1280, 1590, 1604, 1696, 1920, 2005, 2120, 2406, 2544, 3180, 3208, 3392, 3840, 4010, 4240, 4812, 5088, 6015, 6360, 6416, 6784, 8020, 8480, 9624, 10176, 12030, 12720, 12832, 13568, 16040, 16960, 19248, 20352, 21253, 24060, 25440, 25664, 32080, 33920, 38496, 40704, 42506, 48120, 50880, 51328, 63759, 64160, 67840, 76992, 85012, 96240, 101760, 102656, 106265, 127518, 128320, 153984, 170024, 192480, 203520, 212530, 255036, 256640, 307968, 318795, 340048, 384960, 425060, 510072, 513280, 637590, 680096, 769920, 850120, 1020144, 1275180, 1360192, 1539840, 1700240, 2040288, 2550360, 2720384, 3400480, 4080576, 5100720, 5440768, 6800960, 8161152, 10201440, 13601920, 16322304, 20402880, 27203840, 40805760, 81611520]

約数ペア:

[(1, 81611520), (2, 40805760), (3, 27203840), (4, 20402880), (5, 16322304), (6, 13601920), (8, 10201440), (10, 8161152), (12, 6800960), (15, 5440768), (16, 5100720), (20, 4080576), (24, 3400480), (30, 2720384), (32, 2550360), (40, 2040288), (48, 1700240), (53, 1539840), (60, 1360192), (64, 1275180), (80, 1020144), (96, 850120), (106, 769920), (120, 680096), (128, 637590), (159, 513280), (160, 510072), (192, 425060), (212, 384960), (240, 340048), (256, 318795), (265, 307968), (318, 256640), (320, 255036), (384, 212530), (401, 203520), (424, 192480), (480, 170024), (530, 153984), (636, 128320), (640, 127518), (768, 106265), (795, 102656), (802, 101760), (848, 96240), (960, 85012), (1060, 76992), (1203, 67840), (1272, 64160), (1280, 63759), (1590, 51328), (1604, 50880), (1696, 48120), (1920, 42506), (2005, 40704), (2120, 38496), (2406, 33920), (2544, 32080), (3180, 25664), (3208, 25440), (3392, 24060), (3840, 21253), (4010, 20352), (4240, 19248), (4812, 16960), (5088, 16040), (6015, 13568), (6360, 12832), (6416, 12720), (6784, 12030), (8020, 10176), (8480, 9624)]