247333520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{441667}}^1$

素因数の和:441687

約数の個数: 40

約数和(自身を含む): 657201984

約数和(自身を除く): 409868464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 441667, 883334, 1766668, 2208335, 3091669, 3533336, 4416670, 6183338, 7066672, 8833340, 12366676, 15458345, 17666680, 24733352, 30916690, 35333360, 49466704, 61833380, 123666760, 247333520]

約数ペア:

[(1, 247333520), (2, 123666760), (4, 61833380), (5, 49466704), (7, 35333360), (8, 30916690), (10, 24733352), (14, 17666680), (16, 15458345), (20, 12366676), (28, 8833340), (35, 7066672), (40, 6183338), (56, 4416670), (70, 3533336), (80, 3091669), (112, 2208335), (140, 1766668), (280, 883334), (560, 441667)]