8905040

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 20865480

約数和(自身を除く): 11960440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 709, 785, 1256, 1418, 1570, 2512, 2836, 3140, 3545, 5672, 6280, 7090, 11344, 12560, 14180, 28360, 56720, 111313, 222626, 445252, 556565, 890504, 1113130, 1781008, 2226260, 4452520, 8905040]

約数ペア:

[(1, 8905040), (2, 4452520), (4, 2226260), (5, 1781008), (8, 1113130), (10, 890504), (16, 556565), (20, 445252), (40, 222626), (80, 111313), (157, 56720), (314, 28360), (628, 14180), (709, 12560), (785, 11344), (1256, 7090), (1418, 6280), (1570, 5672), (2512, 3545), (2836, 3140)]