7657720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{3907}}^1$

素因数の和:3932

約数の個数: 48

約数和(自身を含む): 20048040

約数和(自身を除く): 12390320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 3907, 7814, 15628, 19535, 27349, 31256, 39070, 54698, 78140, 109396, 136745, 156280, 191443, 218792, 273490, 382886, 546980, 765772, 957215, 1093960, 1531544, 1914430, 3828860, 7657720]

約数ペア:

[(1, 7657720), (2, 3828860), (4, 1914430), (5, 1531544), (7, 1093960), (8, 957215), (10, 765772), (14, 546980), (20, 382886), (28, 273490), (35, 218792), (40, 191443), (49, 156280), (56, 136745), (70, 109396), (98, 78140), (140, 54698), (196, 39070), (245, 31256), (280, 27349), (392, 19535), (490, 15628), (980, 7814), (1960, 3907)]