28577220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68041}}^1$

素因数の和:68060

約数の個数: 48

約数和(自身を含む): 91448448

約数和(自身を除く): 62871228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68041, 136082, 204123, 272164, 340205, 408246, 476287, 680410, 816492, 952574, 1020615, 1360820, 1428861, 1905148, 2041230, 2381435, 2857722, 4082460, 4762870, 5715444, 7144305, 9525740, 14288610, 28577220]

約数ペア:

[(1, 28577220), (2, 14288610), (3, 9525740), (4, 7144305), (5, 5715444), (6, 4762870), (7, 4082460), (10, 2857722), (12, 2381435), (14, 2041230), (15, 1905148), (20, 1428861), (21, 1360820), (28, 1020615), (30, 952574), (35, 816492), (42, 680410), (60, 476287), (70, 408246), (84, 340205), (105, 272164), (140, 204123), (210, 136082), (420, 68041)]