87919780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{338153}}^1$

素因数の和:338175

約数の個数: 24

約数和(自身を含む): 198834552

約数和(自身を除く): 110914772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 338153, 676306, 1352612, 1690765, 3381530, 4395989, 6763060, 8791978, 17583956, 21979945, 43959890, 87919780]

約数ペア:

[(1, 87919780), (2, 43959890), (4, 21979945), (5, 17583956), (10, 8791978), (13, 6763060), (20, 4395989), (26, 3381530), (52, 1690765), (65, 1352612), (130, 676306), (260, 338153)]