28881920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5641}}^1$

素因数の和:5666

約数の個数: 44

約数和(自身を含む): 69295044

約数和(自身を除く): 40413124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5641, 11282, 22564, 28205, 45128, 56410, 90256, 112820, 180512, 225640, 361024, 451280, 722048, 902560, 1444096, 1805120, 2888192, 3610240, 5776384, 7220480, 14440960, 28881920]

約数ペア:

[(1, 28881920), (2, 14440960), (4, 7220480), (5, 5776384), (8, 3610240), (10, 2888192), (16, 1805120), (20, 1444096), (32, 902560), (40, 722048), (64, 451280), (80, 361024), (128, 225640), (160, 180512), (256, 112820), (320, 90256), (512, 56410), (640, 45128), (1024, 28205), (1280, 22564), (2560, 11282), (5120, 5641)]