40943960

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2011}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 92350800

約数和(自身を除く): 51406840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2011, 2036, 2545, 4022, 4072, 5090, 8044, 10055, 10180, 16088, 20110, 20360, 40220, 80440, 1023599, 2047198, 4094396, 5117995, 8188792, 10235990, 20471980, 40943960]

約数ペア:

[(1, 40943960), (2, 20471980), (4, 10235990), (5, 8188792), (8, 5117995), (10, 4094396), (20, 2047198), (40, 1023599), (509, 80440), (1018, 40220), (2011, 20360), (2036, 20110), (2545, 16088), (4022, 10180), (4072, 10055), (5090, 8044)]