21234570620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3797}}^1\times {\mathrm{14717}}^1$

素因数の和:18542

約数の個数: 48

約数和(自身を含む): 46955129760

約数和(自身を除く): 25720559140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 3797, 7594, 14717, 15188, 18985, 29434, 37970, 58868, 72143, 73585, 75940, 144286, 147170, 279623, 288572, 294340, 360715, 559246, 721430, 1118492, 1398115, 1442860, 2796230, 5592460, 55880449, 111760898, 223521796, 279402245, 558804490, 1061728531, 1117608980, 2123457062, 4246914124, 5308642655, 10617285310, 21234570620]

約数ペア:

[(1, 21234570620), (2, 10617285310), (4, 5308642655), (5, 4246914124), (10, 2123457062), (19, 1117608980), (20, 1061728531), (38, 558804490), (76, 279402245), (95, 223521796), (190, 111760898), (380, 55880449), (3797, 5592460), (7594, 2796230), (14717, 1442860), (15188, 1398115), (18985, 1118492), (29434, 721430), (37970, 559246), (58868, 360715), (72143, 294340), (73585, 288572), (75940, 279623), (144286, 147170)]