128840380

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{11777}}^1$

素因数の和:12333

約数の個数: 24

約数和(自身を含む): 271082448

約数和(自身を除く): 142242068

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 2188, 2735, 5470, 10940, 11777, 23554, 47108, 58885, 117770, 235540, 6442019, 12884038, 25768076, 32210095, 64420190, 128840380]

約数ペア:

[(1, 128840380), (2, 64420190), (4, 32210095), (5, 25768076), (10, 12884038), (20, 6442019), (547, 235540), (1094, 117770), (2188, 58885), (2735, 47108), (5470, 23554), (10940, 11777)]