19728690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1439}}^1$

素因数の和:1906

約数の個数: 32

約数和(自身を含む): 47485440

約数和(自身を除く): 27756750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 457, 914, 1371, 1439, 2285, 2742, 2878, 4317, 4570, 6855, 7195, 8634, 13710, 14390, 21585, 43170, 657623, 1315246, 1972869, 3288115, 3945738, 6576230, 9864345, 19728690]

約数ペア:

[(1, 19728690), (2, 9864345), (3, 6576230), (5, 3945738), (6, 3288115), (10, 1972869), (15, 1315246), (30, 657623), (457, 43170), (914, 21585), (1371, 14390), (1439, 13710), (2285, 8634), (2742, 7195), (2878, 6855), (4317, 4570)]