1812220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 36

約数和(自身を含む): 4032504

約数和(自身を除く): 2220284

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 361, 380, 502, 722, 1004, 1255, 1444, 1805, 2510, 3610, 4769, 5020, 7220, 9538, 19076, 23845, 47690, 90611, 95380, 181222, 362444, 453055, 906110, 1812220]

約数ペア:

[(1, 1812220), (2, 906110), (4, 453055), (5, 362444), (10, 181222), (19, 95380), (20, 90611), (38, 47690), (76, 23845), (95, 19076), (190, 9538), (251, 7220), (361, 5020), (380, 4769), (502, 3610), (722, 2510), (1004, 1805), (1255, 1444)]