880808560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{256049}}^1$

素因数の和:256105

約数の個数: 40

約数和(自身を含む): 2095513200

約数和(自身を除く): 1214704640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 256049, 512098, 1024196, 1280245, 2048392, 2560490, 4096784, 5120980, 10241960, 11010107, 20483920, 22020214, 44040428, 55050535, 88080856, 110101070, 176161712, 220202140, 440404280, 880808560]

約数ペア:

[(1, 880808560), (2, 440404280), (4, 220202140), (5, 176161712), (8, 110101070), (10, 88080856), (16, 55050535), (20, 44040428), (40, 22020214), (43, 20483920), (80, 11010107), (86, 10241960), (172, 5120980), (215, 4096784), (344, 2560490), (430, 2048392), (688, 1280245), (860, 1024196), (1720, 512098), (3440, 256049)]