128961488

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{260003}}^1$

素因数の和:260042

約数の個数: 20

約数和(自身を含む): 257923968

約数和(自身を除く): 128962480

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 260003, 520006, 1040012, 2080024, 4160048, 8060093, 16120186, 32240372, 64480744, 128961488]

約数ペア:

[(1, 128961488), (2, 64480744), (4, 32240372), (8, 16120186), (16, 8060093), (31, 4160048), (62, 2080024), (124, 1040012), (248, 520006), (496, 260003)]