78408868

素因数分解:

$2^2\times {\mathrm{163}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 138908000

約数和(自身を除く): 60499132

約数列:

[1, 2, 4, 163, 241, 326, 482, 499, 652, 964, 998, 1996, 39283, 78566, 81337, 120259, 157132, 162674, 240518, 325348, 481036, 19602217, 39204434, 78408868]

約数ペア:

[(1, 78408868), (2, 39204434), (4, 19602217), (163, 481036), (241, 325348), (326, 240518), (482, 162674), (499, 157132), (652, 120259), (964, 81337), (998, 78566), (1996, 39283)]