261644728

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{8609}}^1$

素因数の和:8775

約数の個数: 32

約数和(自身を含む): 511434000

約数和(自身を除く): 249789272

約数列:

[1, 2, 4, 8, 29, 58, 116, 131, 232, 262, 524, 1048, 3799, 7598, 8609, 15196, 17218, 30392, 34436, 68872, 249661, 499322, 998644, 1127779, 1997288, 2255558, 4511116, 9022232, 32705591, 65411182, 130822364, 261644728]

約数ペア:

[(1, 261644728), (2, 130822364), (4, 65411182), (8, 32705591), (29, 9022232), (58, 4511116), (116, 2255558), (131, 1997288), (232, 1127779), (262, 998644), (524, 499322), (1048, 249661), (3799, 68872), (7598, 34436), (8609, 30392), (15196, 17218)]