30520540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1543}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 68479488

約数和(自身を除く): 37958948

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 860, 989, 1543, 1978, 3086, 3956, 4945, 6172, 7715, 9890, 15430, 19780, 30860, 35489, 66349, 70978, 132698, 141956, 177445, 265396, 331745, 354890, 663490, 709780, 1326980, 1526027, 3052054, 6104108, 7630135, 15260270, 30520540]

約数ペア:

[(1, 30520540), (2, 15260270), (4, 7630135), (5, 6104108), (10, 3052054), (20, 1526027), (23, 1326980), (43, 709780), (46, 663490), (86, 354890), (92, 331745), (115, 265396), (172, 177445), (215, 141956), (230, 132698), (430, 70978), (460, 66349), (860, 35489), (989, 30860), (1543, 19780), (1978, 15430), (3086, 9890), (3956, 7715), (4945, 6172)]