15939280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{28463}}^1$

素因数の和:28483

約数の個数: 40

約数和(自身を含む): 42354432

約数和(自身を除く): 26415152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 28463, 56926, 113852, 142315, 199241, 227704, 284630, 398482, 455408, 569260, 796964, 996205, 1138520, 1593928, 1992410, 2277040, 3187856, 3984820, 7969640, 15939280]

約数ペア:

[(1, 15939280), (2, 7969640), (4, 3984820), (5, 3187856), (7, 2277040), (8, 1992410), (10, 1593928), (14, 1138520), (16, 996205), (20, 796964), (28, 569260), (35, 455408), (40, 398482), (56, 284630), (70, 227704), (80, 199241), (112, 142315), (140, 113852), (280, 56926), (560, 28463)]