28277960

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6607}}^1$

素因数の和:6725

約数の個数: 32

約数和(自身を含む): 64229760

約数和(自身を除く): 35951800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 6607, 13214, 26428, 33035, 52856, 66070, 132140, 264280, 706949, 1413898, 2827796, 3534745, 5655592, 7069490, 14138980, 28277960]

約数ペア:

[(1, 28277960), (2, 14138980), (4, 7069490), (5, 5655592), (8, 3534745), (10, 2827796), (20, 1413898), (40, 706949), (107, 264280), (214, 132140), (428, 66070), (535, 52856), (856, 33035), (1070, 26428), (2140, 13214), (4280, 6607)]