28325920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{3613}}^1$

素因数の和:3642

約数の個数: 72

約数和(自身を含む): 77867244

約数和(自身を除く): 49541324

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3613, 3920, 7226, 7840, 14452, 18065, 25291, 28904, 36130, 50582, 57808, 72260, 101164, 115616, 126455, 144520, 177037, 202328, 252910, 289040, 354074, 404656, 505820, 578080, 708148, 809312, 885185, 1011640, 1416296, 1770370, 2023280, 2832592, 3540740, 4046560, 5665184, 7081480, 14162960, 28325920]

約数ペア:

[(1, 28325920), (2, 14162960), (4, 7081480), (5, 5665184), (7, 4046560), (8, 3540740), (10, 2832592), (14, 2023280), (16, 1770370), (20, 1416296), (28, 1011640), (32, 885185), (35, 809312), (40, 708148), (49, 578080), (56, 505820), (70, 404656), (80, 354074), (98, 289040), (112, 252910), (140, 202328), (160, 177037), (196, 144520), (224, 126455), (245, 115616), (280, 101164), (392, 72260), (490, 57808), (560, 50582), (784, 36130), (980, 28904), (1120, 25291), (1568, 18065), (1960, 14452), (3613, 7840), (3920, 7226)]