28277920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16067}}^1$

素因数の和:16093

約数の個数: 48

約数和(自身を含む): 72884448

約数和(自身を除く): 44606528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 16067, 32134, 64268, 80335, 128536, 160670, 176737, 257072, 321340, 353474, 514144, 642680, 706948, 883685, 1285360, 1413896, 1767370, 2570720, 2827792, 3534740, 5655584, 7069480, 14138960, 28277920]

約数ペア:

[(1, 28277920), (2, 14138960), (4, 7069480), (5, 5655584), (8, 3534740), (10, 2827792), (11, 2570720), (16, 1767370), (20, 1413896), (22, 1285360), (32, 883685), (40, 706948), (44, 642680), (55, 514144), (80, 353474), (88, 321340), (110, 257072), (160, 176737), (176, 160670), (220, 128536), (352, 80335), (440, 64268), (880, 32134), (1760, 16067)]