1291230280

素因数分解:

$2^3\times 5^1\times {\mathrm{2741}}^1\times {\mathrm{11777}}^1$

素因数の和:14529

約数の個数: 32

約数和(自身を含む): 2906574840

約数和(自身を除く): 1615344560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2741, 5482, 10964, 11777, 13705, 21928, 23554, 27410, 47108, 54820, 58885, 94216, 109640, 117770, 235540, 471080, 32280757, 64561514, 129123028, 161403785, 258246056, 322807570, 645615140, 1291230280]

約数ペア:

[(1, 1291230280), (2, 645615140), (4, 322807570), (5, 258246056), (8, 161403785), (10, 129123028), (20, 64561514), (40, 32280757), (2741, 471080), (5482, 235540), (10964, 117770), (11777, 109640), (13705, 94216), (21928, 58885), (23554, 54820), (27410, 47108)]