2018382280

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{123373}}^1$

素因数の和:123793

約数の個数: 32

約数和(自身を含む): 4552500600

約数和(自身を除く): 2534118320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 16360, 123373, 246746, 493492, 616865, 986984, 1233730, 2467460, 4934920, 50459557, 100919114, 201838228, 252297785, 403676456, 504595570, 1009191140, 2018382280]

約数ペア:

[(1, 2018382280), (2, 1009191140), (4, 504595570), (5, 403676456), (8, 252297785), (10, 201838228), (20, 100919114), (40, 50459557), (409, 4934920), (818, 2467460), (1636, 1233730), (2045, 986984), (3272, 616865), (4090, 493492), (8180, 246746), (16360, 123373)]