79181980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{39199}}^1$

素因数の和:39309

約数の個数: 24

約数和(自身を含む): 167932800

約数和(自身を除く): 88750820

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 39199, 78398, 156796, 195995, 391990, 783980, 3959099, 7918198, 15836396, 19795495, 39590990, 79181980]

約数ペア:

[(1, 79181980), (2, 39590990), (4, 19795495), (5, 15836396), (10, 7918198), (20, 3959099), (101, 783980), (202, 391990), (404, 195995), (505, 156796), (1010, 78398), (2020, 39199)]