20496493184

素因数分解:

$2^7\times {\mathrm{157}}^1\times {\mathrm{383}}^1\times {\mathrm{2663}}^1$

素因数の和:3217

約数の個数: 64

約数和(自身を含む): 41215703040

約数和(自身を除く): 20719209856

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 314, 383, 628, 766, 1256, 1532, 2512, 2663, 3064, 5024, 5326, 6128, 10048, 10652, 12256, 20096, 21304, 24512, 42608, 49024, 60131, 85216, 120262, 170432, 240524, 340864, 418091, 481048, 836182, 962096, 1019929, 1672364, 1924192, 2039858, 3344728, 3848384, 4079716, 6689456, 7696768, 8159432, 13378912, 16318864, 26757824, 32637728, 53515648, 65275456, 130550912, 160128853, 320257706, 640515412, 1281030824, 2562061648, 5124123296, 10248246592, 20496493184]

約数ペア:

[(1, 20496493184), (2, 10248246592), (4, 5124123296), (8, 2562061648), (16, 1281030824), (32, 640515412), (64, 320257706), (128, 160128853), (157, 130550912), (314, 65275456), (383, 53515648), (628, 32637728), (766, 26757824), (1256, 16318864), (1532, 13378912), (2512, 8159432), (2663, 7696768), (3064, 6689456), (5024, 4079716), (5326, 3848384), (6128, 3344728), (10048, 2039858), (10652, 1924192), (12256, 1672364), (20096, 1019929), (21304, 962096), (24512, 836182), (42608, 481048), (49024, 418091), (60131, 340864), (85216, 240524), (120262, 170432)]