38781380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{431}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 89268480

約数和(自身を除く): 50487100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 409, 431, 818, 862, 1636, 1724, 2045, 2155, 4090, 4310, 4499, 4741, 8180, 8620, 8998, 9482, 17996, 18964, 22495, 23705, 44990, 47410, 89980, 94820, 176279, 352558, 705116, 881395, 1762790, 1939069, 3525580, 3878138, 7756276, 9695345, 19390690, 38781380]

約数ペア:

[(1, 38781380), (2, 19390690), (4, 9695345), (5, 7756276), (10, 3878138), (11, 3525580), (20, 1939069), (22, 1762790), (44, 881395), (55, 705116), (110, 352558), (220, 176279), (409, 94820), (431, 89980), (818, 47410), (862, 44990), (1636, 23705), (1724, 22495), (2045, 18964), (2155, 17996), (4090, 9482), (4310, 8998), (4499, 8620), (4741, 8180)]