78395216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{257879}}^1$

素因数の和:257906

約数の個数: 20

約数和(自身を含む): 159885600

約数和(自身を除く): 81490384

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 257879, 515758, 1031516, 2063032, 4126064, 4899701, 9799402, 19598804, 39197608, 78395216]

約数ペア:

[(1, 78395216), (2, 39197608), (4, 19598804), (8, 9799402), (16, 4899701), (19, 4126064), (38, 2063032), (76, 1031516), (152, 515758), (304, 257879)]