20003218928

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16236379}}^1$

素因数の和:16236405

約数の個数: 40

約数和(自身を含む): 48319466880

約数和(自身を除く): 28316247952

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16236379, 32472758, 64945516, 113654653, 129891032, 178600169, 227309306, 259782064, 357200338, 454618612, 714400676, 909237224, 1250201183, 1428801352, 1818474448, 2500402366, 2857602704, 5000804732, 10001609464, 20003218928]

約数ペア:

[(1, 20003218928), (2, 10001609464), (4, 5000804732), (7, 2857602704), (8, 2500402366), (11, 1818474448), (14, 1428801352), (16, 1250201183), (22, 909237224), (28, 714400676), (44, 454618612), (56, 357200338), (77, 259782064), (88, 227309306), (112, 178600169), (154, 129891032), (176, 113654653), (308, 64945516), (616, 32472758), (1232, 16236379)]