2109220

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 4463424

約数和(自身を除く): 2354204

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 647, 652, 815, 1294, 1630, 2588, 3235, 3260, 6470, 12940, 105461, 210922, 421844, 527305, 1054610, 2109220]

約数ペア:

[(1, 2109220), (2, 1054610), (4, 527305), (5, 421844), (10, 210922), (20, 105461), (163, 12940), (326, 6470), (647, 3260), (652, 3235), (815, 2588), (1294, 1630)]