155407910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{317159}}^1$

素因数の和:317180

約数の個数: 24

約数和(自身を含む): 325406160

約数和(自身を除く): 169998250

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 317159, 634318, 1585795, 2220113, 3171590, 4440226, 11100565, 15540791, 22201130, 31081582, 77703955, 155407910]

約数ペア:

[(1, 155407910), (2, 77703955), (5, 31081582), (7, 22201130), (10, 15540791), (14, 11100565), (35, 4440226), (49, 3171590), (70, 2220113), (98, 1585795), (245, 634318), (490, 317159)]