691880980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{706001}}^1$

素因数の和:706024

約数の個数: 36

約数和(自身を含む): 1690168788

約数和(自身を除く): 998287808

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 706001, 1412002, 2824004, 3530005, 4942007, 7060010, 9884014, 14120020, 19768028, 24710035, 34594049, 49420070, 69188098, 98840140, 138376196, 172970245, 345940490, 691880980]

約数ペア:

[(1, 691880980), (2, 345940490), (4, 172970245), (5, 138376196), (7, 98840140), (10, 69188098), (14, 49420070), (20, 34594049), (28, 24710035), (35, 19768028), (49, 14120020), (70, 9884014), (98, 7060010), (140, 4942007), (196, 3530005), (245, 2824004), (490, 1412002), (980, 706001)]