256196360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{2389}}^1$

素因数の和:2790

約数の個数: 64

約数和(自身を含む): 660787200

約数和(自身を除く): 404590840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 383, 766, 1532, 1915, 2389, 2681, 3064, 3830, 4778, 5362, 7660, 9556, 10724, 11945, 13405, 15320, 16723, 19112, 21448, 23890, 26810, 33446, 47780, 53620, 66892, 83615, 95560, 107240, 133784, 167230, 334460, 668920, 914987, 1829974, 3659948, 4574935, 6404909, 7319896, 9149870, 12809818, 18299740, 25619636, 32024545, 36599480, 51239272, 64049090, 128098180, 256196360]

約数ペア:

[(1, 256196360), (2, 128098180), (4, 64049090), (5, 51239272), (7, 36599480), (8, 32024545), (10, 25619636), (14, 18299740), (20, 12809818), (28, 9149870), (35, 7319896), (40, 6404909), (56, 4574935), (70, 3659948), (140, 1829974), (280, 914987), (383, 668920), (766, 334460), (1532, 167230), (1915, 133784), (2389, 107240), (2681, 95560), (3064, 83615), (3830, 66892), (4778, 53620), (5362, 47780), (7660, 33446), (9556, 26810), (10724, 23890), (11945, 21448), (13405, 19112), (15320, 16723)]