28047140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127487}}^1$

素因数の和:127507

約数の個数: 24

約数和(自身を含む): 64253952

約数和(自身を除く): 36206812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127487, 254974, 509948, 637435, 1274870, 1402357, 2549740, 2804714, 5609428, 7011785, 14023570, 28047140]

約数ペア:

[(1, 28047140), (2, 14023570), (4, 7011785), (5, 5609428), (10, 2804714), (11, 2549740), (20, 1402357), (22, 1274870), (44, 637435), (55, 509948), (110, 254974), (220, 127487)]