20139910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6691}}^1$

素因数の和:6748

約数の個数: 32

約数和(自身を含む): 42400512

約数和(自身を除く): 22260602

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6691, 13382, 33455, 46837, 66910, 93674, 234185, 287713, 468370, 575426, 1438565, 2013991, 2877130, 4027982, 10069955, 20139910]

約数ペア:

[(1, 20139910), (2, 10069955), (5, 4027982), (7, 2877130), (10, 2013991), (14, 1438565), (35, 575426), (43, 468370), (70, 287713), (86, 234185), (215, 93674), (301, 66910), (430, 46837), (602, 33455), (1505, 13382), (3010, 6691)]