397304816

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{671123}}^1$

素因数の和:671168

約数の個数: 20

約数和(自身を含む): 790584072

約数和(自身を除く): 393279256

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 671123, 1342246, 2684492, 5368984, 10737968, 24831551, 49663102, 99326204, 198652408, 397304816]

約数ペア:

[(1, 397304816), (2, 198652408), (4, 99326204), (8, 49663102), (16, 24831551), (37, 10737968), (74, 5368984), (148, 2684492), (296, 1342246), (592, 671123)]