66819568

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{25621}}^1$

素因数の和:25792

約数の個数: 20

約数和(自身を含む): 130262248

約数和(自身を除く): 63442680

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 25621, 51242, 102484, 204968, 409936, 4176223, 8352446, 16704892, 33409784, 66819568]

約数ペア:

[(1, 66819568), (2, 33409784), (4, 16704892), (8, 8352446), (16, 4176223), (163, 409936), (326, 204968), (652, 102484), (1304, 51242), (2608, 25621)]