156968111980

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{3949877}}^1$

素因数の和:3951873

約数の個数: 24

約数和(自身を含む): 329799013488

約数和(自身を除く): 172830901508

約数列:

[1, 2, 4, 5, 10, 20, 1987, 3974, 7948, 9935, 19870, 39740, 3949877, 7899754, 15799508, 19749385, 39498770, 78997540, 7848405599, 15696811198, 31393622396, 39242027995, 78484055990, 156968111980]

約数ペア:

[(1, 156968111980), (2, 78484055990), (4, 39242027995), (5, 31393622396), (10, 15696811198), (20, 7848405599), (1987, 78997540), (3974, 39498770), (7948, 19749385), (9935, 15799508), (19870, 7899754), (39740, 3949877)]