20159095420

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3922003}}^1$

素因数の和:3922269

約数の個数: 24

約数和(自身を含む): 42498835344

約数和(自身を除く): 22339739924

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 3922003, 7844006, 15688012, 19610015, 39220030, 78440060, 1007954771, 2015909542, 4031819084, 5039773855, 10079547710, 20159095420]

約数ペア:

[(1, 20159095420), (2, 10079547710), (4, 5039773855), (5, 4031819084), (10, 2015909542), (20, 1007954771), (257, 78440060), (514, 39220030), (1028, 19610015), (1285, 15688012), (2570, 7844006), (5140, 3922003)]