2040248720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{247603}}^1$

素因数の和:247719

約数の個数: 40

約数和(自身を含む): 4789651776

約数和(自身を除く): 2749403056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 247603, 495206, 990412, 1238015, 1980824, 2476030, 3961648, 4952060, 9904120, 19808240, 25503109, 51006218, 102012436, 127515545, 204024872, 255031090, 408049744, 510062180, 1020124360, 2040248720]

約数ペア:

[(1, 2040248720), (2, 1020124360), (4, 510062180), (5, 408049744), (8, 255031090), (10, 204024872), (16, 127515545), (20, 102012436), (40, 51006218), (80, 25503109), (103, 19808240), (206, 9904120), (412, 4952060), (515, 3961648), (824, 2476030), (1030, 1980824), (1648, 1238015), (2060, 990412), (4120, 495206), (8240, 247603)]