28267520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5521}}^1$

素因数の和:5546

約数の個数: 44

約数和(自身を含む): 67821204

約数和(自身を除く): 39553684

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, 5521, 11042, 22084, 27605, 44168, 55210, 88336, 110420, 176672, 220840, 353344, 441680, 706688, 883360, 1413376, 1766720, 2826752, 3533440, 5653504, 7066880, 14133760, 28267520]

約数ペア:

[(1, 28267520), (2, 14133760), (4, 7066880), (5, 5653504), (8, 3533440), (10, 2826752), (16, 1766720), (20, 1413376), (32, 883360), (40, 706688), (64, 441680), (80, 353344), (128, 220840), (160, 176672), (256, 110420), (320, 88336), (512, 55210), (640, 44168), (1024, 27605), (1280, 22084), (2560, 11042), (5120, 5521)]