255780490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{4789}}^1$

素因数の和:4919

約数の個数: 48

約数和(自身を含む): 540599400

約数和(自身を除く): 284818910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 109, 218, 245, 490, 545, 763, 1090, 1526, 3815, 4789, 5341, 7630, 9578, 10682, 23945, 26705, 33523, 47890, 53410, 67046, 167615, 234661, 335230, 469322, 522001, 1044002, 1173305, 2346610, 2610005, 3654007, 5220010, 7308014, 18270035, 25578049, 36540070, 51156098, 127890245, 255780490]

約数ペア:

[(1, 255780490), (2, 127890245), (5, 51156098), (7, 36540070), (10, 25578049), (14, 18270035), (35, 7308014), (49, 5220010), (70, 3654007), (98, 2610005), (109, 2346610), (218, 1173305), (245, 1044002), (490, 522001), (545, 469322), (763, 335230), (1090, 234661), (1526, 167615), (3815, 67046), (4789, 53410), (5341, 47890), (7630, 33523), (9578, 26705), (10682, 23945)]