20728045824

素因数分解:

$2^8\times 3^1\times {\mathrm{211}}^1\times {\mathrm{127913}}^1$

素因数の和:128143

約数の個数: 72

約数和(自身を含む): 55428717792

約数和(自身を除く): 34700671968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 211, 256, 384, 422, 633, 768, 844, 1266, 1688, 2532, 3376, 5064, 6752, 10128, 13504, 20256, 27008, 40512, 54016, 81024, 127913, 162048, 255826, 383739, 511652, 767478, 1023304, 1534956, 2046608, 3069912, 4093216, 6139824, 8186432, 12279648, 16372864, 24559296, 26989643, 32745728, 49118592, 53979286, 80968929, 98237184, 107958572, 161937858, 215917144, 323875716, 431834288, 647751432, 863668576, 1295502864, 1727337152, 2591005728, 3454674304, 5182011456, 6909348608, 10364022912, 20728045824]

約数ペア:

[(1, 20728045824), (2, 10364022912), (3, 6909348608), (4, 5182011456), (6, 3454674304), (8, 2591005728), (12, 1727337152), (16, 1295502864), (24, 863668576), (32, 647751432), (48, 431834288), (64, 323875716), (96, 215917144), (128, 161937858), (192, 107958572), (211, 98237184), (256, 80968929), (384, 53979286), (422, 49118592), (633, 32745728), (768, 26989643), (844, 24559296), (1266, 16372864), (1688, 12279648), (2532, 8186432), (3376, 6139824), (5064, 4093216), (6752, 3069912), (10128, 2046608), (13504, 1534956), (20256, 1023304), (27008, 767478), (40512, 511652), (54016, 383739), (81024, 255826), (127913, 162048)]