258401456

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{156797}}^1$

素因数の和:156908

約数の個数: 20

約数和(自身を含む): 505516752

約数和(自身を除く): 247115296

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 156797, 313594, 627188, 1254376, 2508752, 16150091, 32300182, 64600364, 129200728, 258401456]

約数ペア:

[(1, 258401456), (2, 129200728), (4, 64600364), (8, 32300182), (16, 16150091), (103, 2508752), (206, 1254376), (412, 627188), (824, 313594), (1648, 156797)]