639571682

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{80897}}^1$

素因数の和:81025

約数の個数: 16

約数和(自身を含む): 990191520

約数和(自身を除く): 350619838

約数列:

[1, 2, 59, 67, 118, 134, 3953, 7906, 80897, 161794, 4772923, 5420099, 9545846, 10840198, 319785841, 639571682]

約数ペア:

[(1, 639571682), (2, 319785841), (59, 10840198), (67, 9545846), (118, 5420099), (134, 4772923), (3953, 161794), (7906, 80897)]