4120840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1451}}^1$

素因数の和:1533

約数の個数: 32

約数和(自身を含む): 9408960

約数和(自身を除く): 5288120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 1451, 2840, 2902, 5804, 7255, 11608, 14510, 29020, 58040, 103021, 206042, 412084, 515105, 824168, 1030210, 2060420, 4120840]

約数ペア:

[(1, 4120840), (2, 2060420), (4, 1030210), (5, 824168), (8, 515105), (10, 412084), (20, 206042), (40, 103021), (71, 58040), (142, 29020), (284, 14510), (355, 11608), (568, 7255), (710, 5804), (1420, 2902), (1451, 2840)]