20218842670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{346391}}^1$

素因数の和:346860

約数の個数: 32

約数和(自身を含む): 39280852800

約数和(自身を除く): 19062010130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 449, 898, 2245, 4490, 5837, 11674, 29185, 58370, 346391, 692782, 1731955, 3463910, 4503083, 9006166, 22515415, 45030830, 155529559, 311059118, 777647795, 1555295590, 2021884267, 4043768534, 10109421335, 20218842670]

約数ペア:

[(1, 20218842670), (2, 10109421335), (5, 4043768534), (10, 2021884267), (13, 1555295590), (26, 777647795), (65, 311059118), (130, 155529559), (449, 45030830), (898, 22515415), (2245, 9006166), (4490, 4503083), (5837, 3463910), (11674, 1731955), (29185, 692782), (58370, 346391)]