2987720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 6792120

約数和(自身を除く): 3804400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 661, 904, 1130, 1322, 2260, 2644, 3305, 4520, 5288, 6610, 13220, 26440, 74693, 149386, 298772, 373465, 597544, 746930, 1493860, 2987720]

約数ペア:

[(1, 2987720), (2, 1493860), (4, 746930), (5, 597544), (8, 373465), (10, 298772), (20, 149386), (40, 74693), (113, 26440), (226, 13220), (452, 6610), (565, 5288), (661, 4520), (904, 3305), (1130, 2644), (1322, 2260)]