78840304

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{80779}}^1$

素因数の和:80848

約数の個数: 20

約数和(自身を含む): 155259160

約数和(自身を除く): 76418856

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 80779, 161558, 323116, 646232, 1292464, 4927519, 9855038, 19710076, 39420152, 78840304]

約数ペア:

[(1, 78840304), (2, 39420152), (4, 19710076), (8, 9855038), (16, 4927519), (61, 1292464), (122, 646232), (244, 323116), (488, 161558), (976, 80779)]