290437340

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{140989}}^1$

素因数の和:141101

約数の個数: 24

約数和(自身を含む): 615844320

約数和(自身を除く): 325406980

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 140989, 281978, 563956, 704945, 1409890, 2819780, 14521867, 29043734, 58087468, 72609335, 145218670, 290437340]

約数ペア:

[(1, 290437340), (2, 145218670), (4, 72609335), (5, 58087468), (10, 29043734), (20, 14521867), (103, 2819780), (206, 1409890), (412, 704945), (515, 563956), (1030, 281978), (2060, 140989)]