20117180848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{189613}}^1$

素因数の和:189989

約数の個数: 40

約数和(自身を含む): 41146238000

約数和(自身を除く): 21029057152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 349, 698, 1396, 2792, 5584, 6631, 13262, 26524, 53048, 106096, 189613, 379226, 758452, 1516904, 3033808, 3602647, 7205294, 14410588, 28821176, 57642352, 66174937, 132349874, 264699748, 529399496, 1058798992, 1257323803, 2514647606, 5029295212, 10058590424, 20117180848]

約数ペア:

[(1, 20117180848), (2, 10058590424), (4, 5029295212), (8, 2514647606), (16, 1257323803), (19, 1058798992), (38, 529399496), (76, 264699748), (152, 132349874), (304, 66174937), (349, 57642352), (698, 28821176), (1396, 14410588), (2792, 7205294), (5584, 3602647), (6631, 3033808), (13262, 1516904), (26524, 758452), (53048, 379226), (106096, 189613)]