218289890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239879}}^1$

素因数の和:239906

約数の個数: 32

約数和(自身を含む): 483598080

約数和(自身を除く): 265308190

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 239879, 479758, 1199395, 1679153, 2398790, 3118427, 3358306, 6236854, 8395765, 15592135, 16791530, 21828989, 31184270, 43657978, 109144945, 218289890]

約数ペア:

[(1, 218289890), (2, 109144945), (5, 43657978), (7, 31184270), (10, 21828989), (13, 16791530), (14, 15592135), (26, 8395765), (35, 6236854), (65, 3358306), (70, 3118427), (91, 2398790), (130, 1679153), (182, 1199395), (455, 479758), (910, 239879)]