138291248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{278813}}^1$

素因数の和:278852

約数の個数: 20

約数和(自身を含む): 276583488

約数和(自身を除く): 138292240

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 278813, 557626, 1115252, 2230504, 4461008, 8643203, 17286406, 34572812, 69145624, 138291248]

約数ペア:

[(1, 138291248), (2, 69145624), (4, 34572812), (8, 17286406), (16, 8643203), (31, 4461008), (62, 2230504), (124, 1115252), (248, 557626), (496, 278813)]