127623920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22469}}^1$

素因数の和:22553

約数の個数: 40

約数和(自身を含む): 300918240

約数和(自身を除く): 173294320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 22469, 44938, 89876, 112345, 179752, 224690, 359504, 449380, 898760, 1595299, 1797520, 3190598, 6381196, 7976495, 12762392, 15952990, 25524784, 31905980, 63811960, 127623920]

約数ペア:

[(1, 127623920), (2, 63811960), (4, 31905980), (5, 25524784), (8, 15952990), (10, 12762392), (16, 7976495), (20, 6381196), (40, 3190598), (71, 1797520), (80, 1595299), (142, 898760), (284, 449380), (355, 359504), (568, 224690), (710, 179752), (1136, 112345), (1420, 89876), (2840, 44938), (5680, 22469)]