128366288

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{258803}}^1$

素因数の和:258842

約数の個数: 20

約数和(自身を含む): 256733568

約数和(自身を除く): 128367280

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 258803, 517606, 1035212, 2070424, 4140848, 8022893, 16045786, 32091572, 64183144, 128366288]

約数ペア:

[(1, 128366288), (2, 64183144), (4, 32091572), (8, 16045786), (16, 8022893), (31, 4140848), (62, 2070424), (124, 1035212), (248, 517606), (496, 258803)]