642018928

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1294393}}^1$

素因数の和:1294432

約数の個数: 20

約数和(自身を含む): 1284038848

約数和(自身を除く): 642019920

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1294393, 2588786, 5177572, 10355144, 20710288, 40126183, 80252366, 160504732, 321009464, 642018928]

約数ペア:

[(1, 642018928), (2, 321009464), (4, 160504732), (8, 80252366), (16, 40126183), (31, 20710288), (62, 10355144), (124, 5177572), (248, 2588786), (496, 1294393)]