164025424

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{20879}}^1$

素因数の和:21378

約数の個数: 20

約数和(自身を含む): 318461760

約数和(自身を除く): 154436336

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 20879, 41758, 83516, 167032, 334064, 10251589, 20503178, 41006356, 82012712, 164025424]

約数ペア:

[(1, 164025424), (2, 82012712), (4, 41006356), (8, 20503178), (16, 10251589), (491, 334064), (982, 167032), (1964, 83516), (3928, 41758), (7856, 20879)]