131430680

素因数分解:

$2^3\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2027}}^1$

素因数の和:3659

約数の個数: 32

約数和(自身を含む): 296047440

約数和(自身を除く): 164616760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1621, 2027, 3242, 4054, 6484, 8105, 8108, 10135, 12968, 16210, 16216, 20270, 32420, 40540, 64840, 81080, 3285767, 6571534, 13143068, 16428835, 26286136, 32857670, 65715340, 131430680]

約数ペア:

[(1, 131430680), (2, 65715340), (4, 32857670), (5, 26286136), (8, 16428835), (10, 13143068), (20, 6571534), (40, 3285767), (1621, 81080), (2027, 64840), (3242, 40540), (4054, 32420), (6484, 20270), (8105, 16216), (8108, 16210), (10135, 12968)]