256071808

素因数分解:

$2^7\times {\mathrm{641}}^1\times {\mathrm{3121}}^1$

素因数の和:3776

約数の個数: 32

約数和(自身を含む): 511102620

約数和(自身を除く): 255030812

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 641, 1282, 2564, 3121, 5128, 6242, 10256, 12484, 20512, 24968, 41024, 49936, 82048, 99872, 199744, 399488, 2000561, 4001122, 8002244, 16004488, 32008976, 64017952, 128035904, 256071808]

約数ペア:

[(1, 256071808), (2, 128035904), (4, 64017952), (8, 32008976), (16, 16004488), (32, 8002244), (64, 4001122), (128, 2000561), (641, 399488), (1282, 199744), (2564, 99872), (3121, 82048), (5128, 49936), (6242, 41024), (10256, 24968), (12484, 20512)]