28145320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100519}}^1$

素因数の和:100537

約数の個数: 32

約数和(自身を含む): 72374400

約数和(自身を除く): 44229080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100519, 201038, 402076, 502595, 703633, 804152, 1005190, 1407266, 2010380, 2814532, 3518165, 4020760, 5629064, 7036330, 14072660, 28145320]

約数ペア:

[(1, 28145320), (2, 14072660), (4, 7036330), (5, 5629064), (7, 4020760), (8, 3518165), (10, 2814532), (14, 2010380), (20, 1407266), (28, 1005190), (35, 804152), (40, 703633), (56, 502595), (70, 402076), (140, 201038), (280, 100519)]