257149712

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{518447}}^1$

素因数の和:518486

約数の個数: 20

約数和(自身を含む): 514300416

約数和(自身を除く): 257150704

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 518447, 1036894, 2073788, 4147576, 8295152, 16071857, 32143714, 64287428, 128574856, 257149712]

約数ペア:

[(1, 257149712), (2, 128574856), (4, 64287428), (8, 32143714), (16, 16071857), (31, 8295152), (62, 4147576), (124, 2073788), (248, 1036894), (496, 518447)]