18807320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67169}}^1$

素因数の和:67187

約数の個数: 32

約数和(自身を含む): 48362400

約数和(自身を除く): 29555080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67169, 134338, 268676, 335845, 470183, 537352, 671690, 940366, 1343380, 1880732, 2350915, 2686760, 3761464, 4701830, 9403660, 18807320]

約数ペア:

[(1, 18807320), (2, 9403660), (4, 4701830), (5, 3761464), (7, 2686760), (8, 2350915), (10, 1880732), (14, 1343380), (20, 940366), (28, 671690), (35, 537352), (40, 470183), (56, 335845), (70, 268676), (140, 134338), (280, 67169)]