317312960

素因数分解:

$2^6\times 5^1\times {\mathrm{991603}}^1$

素因数の和:991620

約数の個数: 28

約数和(自身を含む): 755602248

約数和(自身を除く): 438289288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 991603, 1983206, 3966412, 4958015, 7932824, 9916030, 15865648, 19832060, 31731296, 39664120, 63462592, 79328240, 158656480, 317312960]

約数ペア:

[(1, 317312960), (2, 158656480), (4, 79328240), (5, 63462592), (8, 39664120), (10, 31731296), (16, 19832060), (20, 15865648), (32, 9916030), (40, 7932824), (64, 4958015), (80, 3966412), (160, 1983206), (320, 991603)]