2645360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 6301680

約数和(自身を除く): 3656320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 769, 860, 1538, 1720, 3076, 3440, 3845, 6152, 7690, 12304, 15380, 30760, 33067, 61520, 66134, 132268, 165335, 264536, 330670, 529072, 661340, 1322680, 2645360]

約数ペア:

[(1, 2645360), (2, 1322680), (4, 661340), (5, 529072), (8, 330670), (10, 264536), (16, 165335), (20, 132268), (40, 66134), (43, 61520), (80, 33067), (86, 30760), (172, 15380), (215, 12304), (344, 7690), (430, 6152), (688, 3845), (769, 3440), (860, 3076), (1538, 1720)]