1557408040

素因数分解:

$2^3\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{30347}}^1$

素因数の和:31641

約数の個数: 32

約数和(自身を含む): 3507014880

約数和(自身を除く): 1949606840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283, 2566, 5132, 6415, 10264, 12830, 25660, 30347, 51320, 60694, 121388, 151735, 242776, 303470, 606940, 1213880, 38935201, 77870402, 155740804, 194676005, 311481608, 389352010, 778704020, 1557408040]

約数ペア:

[(1, 1557408040), (2, 778704020), (4, 389352010), (5, 311481608), (8, 194676005), (10, 155740804), (20, 77870402), (40, 38935201), (1283, 1213880), (2566, 606940), (5132, 303470), (6415, 242776), (10264, 151735), (12830, 121388), (25660, 60694), (30347, 51320)]