127287920

素因数分解:

$2^4\times 5^1\times {\mathrm{1591099}}^1$

素因数の和:1591112

約数の個数: 20

約数和(自身を含む): 295944600

約数和(自身を除く): 168656680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1591099, 3182198, 6364396, 7955495, 12728792, 15910990, 25457584, 31821980, 63643960, 127287920]

約数ペア:

[(1, 127287920), (2, 63643960), (4, 31821980), (5, 25457584), (8, 15910990), (10, 12728792), (16, 7955495), (20, 6364396), (40, 3182198), (80, 1591099)]