136608920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{487889}}^1$

素因数の和:487907

約数の個数: 32

約数和(自身を含む): 351280800

約数和(自身を除く): 214671880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 487889, 975778, 1951556, 2439445, 3415223, 3903112, 4878890, 6830446, 9757780, 13660892, 17076115, 19515560, 27321784, 34152230, 68304460, 136608920]

約数ペア:

[(1, 136608920), (2, 68304460), (4, 34152230), (5, 27321784), (7, 19515560), (8, 17076115), (10, 13660892), (14, 9757780), (20, 6830446), (28, 4878890), (35, 3903112), (40, 3415223), (56, 2439445), (70, 1951556), (140, 975778), (280, 487889)]