256244664

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{821297}}^1$

素因数の和:821319

約数の個数: 32

約数和(自身を含む): 689890320

約数和(自身を除く): 433645656

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 821297, 1642594, 2463891, 3285188, 4927782, 6570376, 9855564, 10676861, 19711128, 21353722, 32030583, 42707444, 64061166, 85414888, 128122332, 256244664]

約数ペア:

[(1, 256244664), (2, 128122332), (3, 85414888), (4, 64061166), (6, 42707444), (8, 32030583), (12, 21353722), (13, 19711128), (24, 10676861), (26, 9855564), (39, 6570376), (52, 4927782), (78, 3285188), (104, 2463891), (156, 1642594), (312, 821297)]