18063920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32257}}^1$

素因数の和:32277

約数の個数: 40

約数和(自身を含む): 47999904

約数和(自身を除く): 29935984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32257, 64514, 129028, 161285, 225799, 258056, 322570, 451598, 516112, 645140, 903196, 1128995, 1290280, 1806392, 2257990, 2580560, 3612784, 4515980, 9031960, 18063920]

約数ペア:

[(1, 18063920), (2, 9031960), (4, 4515980), (5, 3612784), (7, 2580560), (8, 2257990), (10, 1806392), (14, 1290280), (16, 1128995), (20, 903196), (28, 645140), (35, 516112), (40, 451598), (56, 322570), (70, 258056), (80, 225799), (112, 161285), (140, 129028), (280, 64514), (560, 32257)]