155105890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{218459}}^1$

素因数の和:218537

約数の個数: 16

約数和(自身を含む): 283124160

約数和(自身を除く): 128018270

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 218459, 436918, 1092295, 2184590, 15510589, 31021178, 77552945, 155105890]

約数ペア:

[(1, 155105890), (2, 77552945), (5, 31021178), (10, 15510589), (71, 2184590), (142, 1092295), (355, 436918), (710, 218459)]