19712960

素因数分解:

$2^6\times 5^1\times {\mathrm{61603}}^1$

素因数の和:61620

約数の個数: 28

約数和(自身を含む): 46942248

約数和(自身を除く): 27229288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61603, 123206, 246412, 308015, 492824, 616030, 985648, 1232060, 1971296, 2464120, 3942592, 4928240, 9856480, 19712960]

約数ペア:

[(1, 19712960), (2, 9856480), (4, 4928240), (5, 3942592), (8, 2464120), (10, 1971296), (16, 1232060), (20, 985648), (32, 616030), (40, 492824), (64, 308015), (80, 246412), (160, 123206), (320, 61603)]