81719040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1674

約数の個数: 144

約数和(自身を含む): 281238048

約数和(自身を除く): 199519008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1637, 1664, 1920, 2080, 2496, 3120, 3274, 3328, 3840, 4160, 4911, 4992, 6240, 6548, 8185, 8320, 9822, 9984, 12480, 13096, 16370, 16640, 19644, 21281, 24555, 24960, 26192, 32740, 39288, 42562, 49110, 49920, 52384, 63843, 65480, 78576, 85124, 98220, 104768, 106405, 127686, 130960, 157152, 170248, 196440, 209536, 212810, 255372, 261920, 314304, 319215, 340496, 392880, 419072, 425620, 510744, 523840, 628608, 638430, 680992, 785760, 851240, 1021488, 1047680, 1257216, 1276860, 1361984, 1571520, 1702480, 2042976, 2095360, 2553720, 2723968, 3143040, 3404960, 4085952, 5107440, 5447936, 6286080, 6809920, 8171904, 10214880, 13619840, 16343808, 20429760, 27239680, 40859520, 81719040]

約数ペア:

[(1, 81719040), (2, 40859520), (3, 27239680), (4, 20429760), (5, 16343808), (6, 13619840), (8, 10214880), (10, 8171904), (12, 6809920), (13, 6286080), (15, 5447936), (16, 5107440), (20, 4085952), (24, 3404960), (26, 3143040), (30, 2723968), (32, 2553720), (39, 2095360), (40, 2042976), (48, 1702480), (52, 1571520), (60, 1361984), (64, 1276860), (65, 1257216), (78, 1047680), (80, 1021488), (96, 851240), (104, 785760), (120, 680992), (128, 638430), (130, 628608), (156, 523840), (160, 510744), (192, 425620), (195, 419072), (208, 392880), (240, 340496), (256, 319215), (260, 314304), (312, 261920), (320, 255372), (384, 212810), (390, 209536), (416, 196440), (480, 170248), (520, 157152), (624, 130960), (640, 127686), (768, 106405), (780, 104768), (832, 98220), (960, 85124), (1040, 78576), (1248, 65480), (1280, 63843), (1560, 52384), (1637, 49920), (1664, 49110), (1920, 42562), (2080, 39288), (2496, 32740), (3120, 26192), (3274, 24960), (3328, 24555), (3840, 21281), (4160, 19644), (4911, 16640), (4992, 16370), (6240, 13096), (6548, 12480), (8185, 9984), (8320, 9822)]