20121581660

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7679993}}^1$

素因数の和:7680133

約数の個数: 24

約数和(自身を含む): 42577886736

約数和(自身を除く): 22456305076

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7679993, 15359986, 30719972, 38399965, 76799930, 153599860, 1006079083, 2012158166, 4024316332, 5030395415, 10060790830, 20121581660]

約数ペア:

[(1, 20121581660), (2, 10060790830), (4, 5030395415), (5, 4024316332), (10, 2012158166), (20, 1006079083), (131, 153599860), (262, 76799930), (524, 38399965), (655, 30719972), (1310, 15359986), (2620, 7679993)]