487992940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{857}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 1043025984

約数和(自身を除く): 555033044

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 401, 710, 802, 857, 1420, 1604, 1714, 2005, 3428, 4010, 4285, 8020, 8570, 17140, 28471, 56942, 60847, 113884, 121694, 142355, 243388, 284710, 304235, 343657, 569420, 608470, 687314, 1216940, 1374628, 1718285, 3436570, 6873140, 24399647, 48799294, 97598588, 121998235, 243996470, 487992940]

約数ペア:

[(1, 487992940), (2, 243996470), (4, 121998235), (5, 97598588), (10, 48799294), (20, 24399647), (71, 6873140), (142, 3436570), (284, 1718285), (355, 1374628), (401, 1216940), (710, 687314), (802, 608470), (857, 569420), (1420, 343657), (1604, 304235), (1714, 284710), (2005, 243388), (3428, 142355), (4010, 121694), (4285, 113884), (8020, 60847), (8570, 56942), (17140, 28471)]