87687980

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{3319}}^1$

素因数の和:4649

約数の個数: 24

約数和(自身を含む): 184339680

約数和(自身を除く): 96651700

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 3319, 5284, 6605, 6638, 13210, 13276, 16595, 26420, 33190, 66380, 4384399, 8768798, 17537596, 21921995, 43843990, 87687980]

約数ペア:

[(1, 87687980), (2, 43843990), (4, 21921995), (5, 17537596), (10, 8768798), (20, 4384399), (1321, 66380), (2642, 33190), (3319, 26420), (5284, 16595), (6605, 13276), (6638, 13210)]