156937313480

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{1974551}}^1$

素因数の和:1976549

約数の個数: 32

約数和(自身を含む): 353286843840

約数和(自身を除く): 196349530360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 3974, 7948, 9935, 15896, 19870, 39740, 79480, 1974551, 3949102, 7898204, 9872755, 15796408, 19745510, 39491020, 78982040, 3923432837, 7846865674, 15693731348, 19617164185, 31387462696, 39234328370, 78468656740, 156937313480]

約数ペア:

[(1, 156937313480), (2, 78468656740), (4, 39234328370), (5, 31387462696), (8, 19617164185), (10, 15693731348), (20, 7846865674), (40, 3923432837), (1987, 78982040), (3974, 39491020), (7948, 19745510), (9935, 15796408), (15896, 9872755), (19870, 7898204), (39740, 3949102), (79480, 1974551)]