1278481168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{2577583}}^1$

素因数の和:2577622

約数の個数: 20

約数和(自身を含む): 2556963328

約数和(自身を除く): 1278482160

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 2577583, 5155166, 10310332, 20620664, 41241328, 79905073, 159810146, 319620292, 639240584, 1278481168]

約数ペア:

[(1, 1278481168), (2, 639240584), (4, 319620292), (8, 159810146), (16, 79905073), (31, 41241328), (62, 20620664), (124, 10310332), (248, 5155166), (496, 2577583)]