1290383920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2304257}}^1$

素因数の和:2304277

約数の個数: 40

約数和(自身を含む): 3428735904

約数和(自身を除く): 2138351984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2304257, 4608514, 9217028, 11521285, 16129799, 18434056, 23042570, 32259598, 36868112, 46085140, 64519196, 80648995, 92170280, 129038392, 161297990, 184340560, 258076784, 322595980, 645191960, 1290383920]

約数ペア:

[(1, 1290383920), (2, 645191960), (4, 322595980), (5, 258076784), (7, 184340560), (8, 161297990), (10, 129038392), (14, 92170280), (16, 80648995), (20, 64519196), (28, 46085140), (35, 36868112), (40, 32259598), (56, 23042570), (70, 18434056), (80, 16129799), (112, 11521285), (140, 9217028), (280, 4608514), (560, 2304257)]