1261585480

素因数分解:

$2^3\times 5^1\times {\mathrm{7879}}^1\times {\mathrm{4003}}^1$

素因数の和:11893

約数の個数: 32

約数和(自身を含む): 2839636800

約数和(自身を除く): 1578051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4003, 7879, 8006, 15758, 16012, 20015, 31516, 32024, 39395, 40030, 63032, 78790, 80060, 157580, 160120, 315160, 31539637, 63079274, 126158548, 157698185, 252317096, 315396370, 630792740, 1261585480]

約数ペア:

[(1, 1261585480), (2, 630792740), (4, 315396370), (5, 252317096), (8, 157698185), (10, 126158548), (20, 63079274), (40, 31539637), (4003, 315160), (7879, 160120), (8006, 157580), (15758, 80060), (16012, 78790), (20015, 63032), (31516, 40030), (32024, 39395)]