7997985

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2097

約数の個数: 24

約数和(自身を含む): 14025960

約数和(自身を除く): 6027975

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 1997, 4005, 5991, 9985, 17973, 29955, 89865, 177733, 533199, 888665, 1599597, 2665995, 7997985]

約数ペア:

[(1, 7997985), (3, 2665995), (5, 1599597), (9, 888665), (15, 533199), (45, 177733), (89, 89865), (267, 29955), (445, 17973), (801, 9985), (1335, 5991), (1997, 4005)]