1440874

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 16

約数和(自身を含む): 2237760

約数和(自身を除く): 796886

約数列:

[1, 2, 71, 73, 139, 142, 146, 278, 5183, 9869, 10147, 10366, 19738, 20294, 720437, 1440874]

約数ペア:

[(1, 1440874), (2, 720437), (71, 20294), (73, 19738), (139, 10366), (142, 10147), (146, 9869), (278, 5183)]