28660720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32569}}^1$

素因数の和:32593

約数の個数: 40

約数和(自身を含む): 72696240

約数和(自身を除く): 44035520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32569, 65138, 130276, 162845, 260552, 325690, 358259, 521104, 651380, 716518, 1302760, 1433036, 1791295, 2605520, 2866072, 3582590, 5732144, 7165180, 14330360, 28660720]

約数ペア:

[(1, 28660720), (2, 14330360), (4, 7165180), (5, 5732144), (8, 3582590), (10, 2866072), (11, 2605520), (16, 1791295), (20, 1433036), (22, 1302760), (40, 716518), (44, 651380), (55, 521104), (80, 358259), (88, 325690), (110, 260552), (176, 162845), (220, 130276), (440, 65138), (880, 32569)]