20140985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4073}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 25812864

約数和(自身を除く): 5671879

約数列:

[1, 5, 23, 43, 115, 215, 989, 4073, 4945, 20365, 93679, 175139, 468395, 875695, 4028197, 20140985]

約数ペア:

[(1, 20140985), (5, 4028197), (23, 875695), (43, 468395), (115, 175139), (215, 93679), (989, 20365), (4073, 4945)]