28805590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1999}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 57024000

約数和(自身を除く): 28218410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1441, 1999, 2882, 3998, 7205, 9995, 14410, 19990, 21989, 43978, 109945, 219890, 261869, 523738, 1309345, 2618690, 2880559, 5761118, 14402795, 28805590]

約数ペア:

[(1, 28805590), (2, 14402795), (5, 5761118), (10, 2880559), (11, 2618690), (22, 1309345), (55, 523738), (110, 261869), (131, 219890), (262, 109945), (655, 43978), (1310, 21989), (1441, 19990), (1999, 14410), (2882, 9995), (3998, 7205)]