71577890

素因数分解:

$2^1\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{4001}}^1$

素因数の和:5797

約数の個数: 16

約数和(自身を含む): 128944440

約数和(自身を除く): 57366550

約数列:

[1, 2, 5, 10, 1789, 3578, 4001, 8002, 8945, 17890, 20005, 40010, 7157789, 14315578, 35788945, 71577890]

約数ペア:

[(1, 71577890), (2, 35788945), (5, 14315578), (10, 7157789), (1789, 40010), (3578, 20005), (4001, 17890), (8002, 8945)]