80921818

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{1321}}^1$

素因数の和:1713

約数の個数: 16

約数和(自身を含む): 123025320

約数和(自身を除く): 42103502

約数列:

[1, 2, 109, 218, 281, 562, 1321, 2642, 30629, 61258, 143989, 287978, 371201, 742402, 40460909, 80921818]

約数ペア:

[(1, 80921818), (2, 40460909), (109, 742402), (218, 371201), (281, 287978), (562, 143989), (1321, 61258), (2642, 30629)]