19759360

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 48565440

約数和(自身を除く): 28806080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 359, 430, 640, 688, 718, 860, 1280, 1376, 1436, 1720, 1795, 2752, 2872, 3440, 3590, 5504, 5744, 6880, 7180, 11008, 11488, 13760, 14360, 15437, 22976, 27520, 28720, 30874, 45952, 55040, 57440, 61748, 77185, 91904, 114880, 123496, 154370, 229760, 246992, 308740, 459520, 493984, 617480, 987968, 1234960, 1975936, 2469920, 3951872, 4939840, 9879680, 19759360]

約数ペア:

[(1, 19759360), (2, 9879680), (4, 4939840), (5, 3951872), (8, 2469920), (10, 1975936), (16, 1234960), (20, 987968), (32, 617480), (40, 493984), (43, 459520), (64, 308740), (80, 246992), (86, 229760), (128, 154370), (160, 123496), (172, 114880), (215, 91904), (256, 77185), (320, 61748), (344, 57440), (359, 55040), (430, 45952), (640, 30874), (688, 28720), (718, 27520), (860, 22976), (1280, 15437), (1376, 14360), (1436, 13760), (1720, 11488), (1795, 11008), (2752, 7180), (2872, 6880), (3440, 5744), (3590, 5504)]