1999490090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15380693}}^1$

素因数の和:15380713

約数の個数: 16

約数和(自身を含む): 3875934888

約数和(自身を除く): 1876444798

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 15380693, 30761386, 76903465, 153806930, 199949009, 399898018, 999745045, 1999490090]

約数ペア:

[(1, 1999490090), (2, 999745045), (5, 399898018), (10, 199949009), (13, 153806930), (26, 76903465), (65, 30761386), (130, 15380693)]