256646884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{607}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 497645568

約数和(自身を除く): 240998684

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 173, 188, 346, 607, 611, 692, 1214, 1222, 2249, 2428, 2444, 4498, 7891, 8131, 8996, 15782, 16262, 28529, 31564, 32524, 57058, 105011, 105703, 114116, 210022, 211406, 370877, 420044, 422812, 741754, 1365143, 1483508, 2730286, 4935517, 5460572, 9871034, 19742068, 64161721, 128323442, 256646884]

約数ペア:

[(1, 256646884), (2, 128323442), (4, 64161721), (13, 19742068), (26, 9871034), (47, 5460572), (52, 4935517), (94, 2730286), (173, 1483508), (188, 1365143), (346, 741754), (607, 422812), (611, 420044), (692, 370877), (1214, 211406), (1222, 210022), (2249, 114116), (2428, 105703), (2444, 105011), (4498, 57058), (7891, 32524), (8131, 31564), (8996, 28529), (15782, 16262)]