205157960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2851}}^1$

素因数の和:3126

約数の個数: 64

約数和(自身を含む): 529787520

約数和(自身を除く): 324629560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2570, 2851, 3598, 5140, 5702, 7196, 8995, 10280, 11404, 14255, 14392, 17990, 19957, 22808, 28510, 35980, 39914, 57020, 71960, 79828, 99785, 114040, 159656, 199570, 399140, 732707, 798280, 1465414, 2930828, 3663535, 5128949, 5861656, 7327070, 10257898, 14654140, 20515796, 25644745, 29308280, 41031592, 51289490, 102578980, 205157960]

約数ペア:

[(1, 205157960), (2, 102578980), (4, 51289490), (5, 41031592), (7, 29308280), (8, 25644745), (10, 20515796), (14, 14654140), (20, 10257898), (28, 7327070), (35, 5861656), (40, 5128949), (56, 3663535), (70, 2930828), (140, 1465414), (257, 798280), (280, 732707), (514, 399140), (1028, 199570), (1285, 159656), (1799, 114040), (2056, 99785), (2570, 79828), (2851, 71960), (3598, 57020), (5140, 39914), (5702, 35980), (7196, 28510), (8995, 22808), (10280, 19957), (11404, 17990), (14255, 14392)]