85890190

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{21419}}^1$

素因数の和:21827

約数の個数: 16

約数和(自身を含む): 154995120

約数和(自身を除く): 69104930

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 21419, 42838, 107095, 214190, 8589019, 17178038, 42945095, 85890190]

約数ペア:

[(1, 85890190), (2, 42945095), (5, 17178038), (10, 8589019), (401, 214190), (802, 107095), (2005, 42838), (4010, 21419)]