256817298712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{733}}^1\times {\mathrm{20173}}^1$

素因数の和:21092

約数の個数: 64

約数和(自身を含む): 522416220480

約数和(自身を除く): 265598921768

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 167, 334, 668, 733, 1336, 1466, 2171, 2932, 4342, 5864, 8684, 9529, 17368, 19058, 20173, 38116, 40346, 76232, 80692, 122411, 161384, 244822, 262249, 489644, 524498, 979288, 1048996, 1591343, 2097992, 3182686, 3368891, 6365372, 6737782, 12730744, 13475564, 14786809, 26951128, 29573618, 43795583, 59147236, 87591166, 118294472, 175182332, 192228517, 350364664, 384457034, 768914068, 1537828136, 2469397103, 4938794206, 9877588412, 19755176824, 32102162339, 64204324678, 128408649356, 256817298712]

約数ペア:

[(1, 256817298712), (2, 128408649356), (4, 64204324678), (8, 32102162339), (13, 19755176824), (26, 9877588412), (52, 4938794206), (104, 2469397103), (167, 1537828136), (334, 768914068), (668, 384457034), (733, 350364664), (1336, 192228517), (1466, 175182332), (2171, 118294472), (2932, 87591166), (4342, 59147236), (5864, 43795583), (8684, 29573618), (9529, 26951128), (17368, 14786809), (19058, 13475564), (20173, 12730744), (38116, 6737782), (40346, 6365372), (76232, 3368891), (80692, 3182686), (122411, 2097992), (161384, 1591343), (244822, 1048996), (262249, 979288), (489644, 524498)]