1978010

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{887}}^1$

素因数の和:1117

約数の個数: 16

約数和(自身を含む): 3580416

約数和(自身を除く): 1602406

約数列:

[1, 2, 5, 10, 223, 446, 887, 1115, 1774, 2230, 4435, 8870, 197801, 395602, 989005, 1978010]

約数ペア:

[(1, 1978010), (2, 989005), (5, 395602), (10, 197801), (223, 8870), (446, 4435), (887, 2230), (1115, 1774)]